tag:blogger.com,1999:blog-15789884390647992342017-03-28T11:54:22.013+05:30MyRankA user friendly Online Educational Portal, a Mentor to the students and an Ultimate Self Assessment Platform
Bhanu Satapatihttps://plus.google.com/116355447280206428989noreply@blogger.comBlogger554125tag:blogger.com,1999:blog-1578988439064799234.post-10815676736701292482017-03-28T11:54:00.003+05:302017-03-28T11:54:22.025+05:30Brain Teaser 9 [With Answers]
Puzzle 1: Fill in the blanks with a word which makes
two different words if you read from both sides:
Tim's
father has kept his ______ in the ______ for scoring good marks in math.
Answer: Reward
and Drawer.
Puzzle 2: There are 17 pigeons sitting in a row on a
wall. A boy shoots the fifth pigeon. How many pigeons remain?
Answer: None.
Explanation: They
all fly away at the sound of sowjanya satapathihttps://plus.google.com/117970606967475058687noreply@blogger.com0tag:blogger.com,1999:blog-1578988439064799234.post-45851697104096765712017-03-28T11:46:00.001+05:302017-03-28T11:50:22.551+05:30Equation of Normal
Normal: The normal at any point P of the centre is the line which passes through P and is perpendicular to the tangent at P.
Equation of Normal:
i. The equation of the normal at p(x₁, y₁) of the circle
⇒ S = 0
⇒ x² + y² + 2gx + 2fy + c = 0 is (x - x₁) (y₁ + f) - (y - y₁) (x₁ + g) = 0
ii. The equation of the normal to the
circle x² + y² = r² at p(x₁, y₁) is xy₁ - yxsowjanya satapathihttps://plus.google.com/117970606967475058687noreply@blogger.com0tag:blogger.com,1999:blog-1578988439064799234.post-27131528522798129952017-03-27T12:34:00.004+05:302017-03-27T12:34:54.067+05:30Brain Teaser 9
Puzzle 1: Fill in the blanks with a word which makes
two different words if you read from both sides:
Tim's father has kept his ______ in
the ______ for scoring good marks in math.
Puzzle 2: There are 17 pigeons sitting in a row on a
wall. A boy shoots the fifth pigeon. How many pigeons remain?
Puzzle 3: What is the largest number you can get using
only 2 digits?
Puzzle 4: sowjanya satapathihttps://plus.google.com/117970606967475058687noreply@blogger.com0tag:blogger.com,1999:blog-1578988439064799234.post-17695731338005837182017-03-27T11:52:00.001+05:302017-03-27T11:52:56.433+05:30Adsorption II
Adsorption isotherms: Plot of the amount of gas adsorbed on the surface of the adsorbent and pressure at constant temperature.
a. Freundlich adsorption isotherm:
(n > 1) … 1
x = mass of the gas adsorbed
m = mass of the adsorbent
P = pressure
k, n = constants. Depend on the nature of the adsorbent and the gas.
Taking logarithm of eqn 1 →
The plot of log(x/m) and log P is a sowjanya satapathihttps://plus.google.com/117970606967475058687noreply@blogger.com0tag:blogger.com,1999:blog-1578988439064799234.post-6413504787965364992017-03-26T11:57:00.002+05:302017-03-26T11:57:07.916+05:30Riddles 8 [With Answers]
Puzzle 1: Imagine you’re in a room that is filling with water. There are no windows or doors. How do you get out?
Answer: Stop imagining.
Puzzle 2: The more you take, the more you leave behind. What are they?
Answer: Footprints.
Puzzle 3: What two keys can’t open any door?
Answer: A monkey and a
donkey.
Puzzle 4: What invention lets you look right through a wall?
Answer: A window.
sowjanya satapathihttps://plus.google.com/117970606967475058687noreply@blogger.com0tag:blogger.com,1999:blog-1578988439064799234.post-36738656682167570102017-03-26T11:53:00.003+05:302017-03-26T11:53:40.843+05:30Growth of Current in an L - R Circuit
Consider
a circuit containing an inductance L and a resistance R connected in series with a d.c. source of steady e.nif E volt and a tap key K (Morse key). When the key is pressed K is in contact with the point A, the current grows from zero to a maximum value of I₀. Let the current in the circuit at any instant t be I.
As the current increases, the magnetic field surrounding the sowjanya satapathihttps://plus.google.com/117970606967475058687noreply@blogger.com0tag:blogger.com,1999:blog-1578988439064799234.post-74853565020334496992017-03-25T12:12:00.004+05:302017-03-25T12:16:19.373+05:30Riddles 8
Puzzle 1: Imagine you’re in a room that is filling with water. There are no windows or doors. How do you get out?
Puzzle 2: The more you take, the more you leave behind. What are they?
Puzzle 3: What two keys can’t open any door?
Puzzle 4: What invention lets you look right through a wall?
sowjanya satapathihttps://plus.google.com/117970606967475058687noreply@blogger.com0tag:blogger.com,1999:blog-1578988439064799234.post-77960050403019198492017-03-25T12:01:00.002+05:302017-03-25T12:01:08.900+05:30Concepts related to two circles
Let C1, C2 be
the centers and r1, r2 be the radii of two circles S = 0 and S' = 0 respectively. Further represents the line segment from C1 to C2. The following cases arises with regard to the relative position of two circles.
1. C1 + C2 > r1 + r2
In this case the two circles do not intersect and one circle will be away from the other circle.
2. C1C2 = r1 + r2
In this case the two sowjanya satapathihttps://plus.google.com/117970606967475058687noreply@blogger.com0tag:blogger.com,1999:blog-1578988439064799234.post-43140236333643796512017-03-24T12:17:00.002+05:302017-03-24T12:17:50.120+05:30Math Puzzle 8 [With Answers]
Puzzle 1: How can these be equal?
In which meaning 1070 = 1110?
Answer: 10 hours 70 minutes equals 11 hours 10 minutes.
Puzzle 2: If
5, 3, 2 = 151022
9, 2, 4 = 183652
8, 6, 3 = 482466
5, 4, 5 = 202541
Then,
7, 2, 5 =?
Answer: It is in the form of (a × b) (a × c) [(a × b) (a × c) - b]
7, 2, 5 = (7 × 2) (7 × 5) [(7 × 2) (7 × 5) - 2] = 143547
Puzzle 3: If
1, 6 = 37
sowjanya satapathihttps://plus.google.com/117970606967475058687noreply@blogger.com0tag:blogger.com,1999:blog-1578988439064799234.post-43828480410446355822017-03-24T12:03:00.000+05:302017-03-24T12:03:02.323+05:30Adsorption
Surface chemistry: Deals with phenomena that occur at the
surfaces or interfaces.
Adsorption:
⇒ Surface phenomenon.
⇒ Accumulation of molecular species at the surface.
⇒ Adsorbate: the substance that accumulates at the surface.
⇒ Adsorbent: the material on the surface of which adsorption occurs.
⇒ Adsorption α Surface Area.
Desorption: The process of removing an adsorbate from the sowjanya satapathihttps://plus.google.com/117970606967475058687noreply@blogger.com0tag:blogger.com,1999:blog-1578988439064799234.post-47654975531876527972017-03-23T11:32:00.003+05:302017-03-23T11:32:43.796+05:30Math Puzzle 8
Puzzle 1: How can these be equal?
In
which meaning 1070 = 1110?
Puzzle 2: If
5,
3, 2 = 151022
9,
2, 4 = 183652
8,
6, 3 = 482466
5,
4, 5 = 202541
Then,
7,
2, 5 =?
Puzzle 3: If
1,
6 = 37
3,
8 = 67
5,
9 = 86
7,
12 = 151
Then,
9,
13 =?
Puzzle 4: If
1
+ 2 = 13
2
+ 3 = 61
3
+ 4 = 193
Then,
4
+ 5 =?
Puzzle 5: To
solve this, replace a sowjanya satapathihttps://plus.google.com/117970606967475058687noreply@blogger.com0tag:blogger.com,1999:blog-1578988439064799234.post-68190458957973823592017-03-23T11:26:00.001+05:302017-03-23T11:26:07.310+05:30Gauss Law
Statement: The gauss’s theorem states that the total electric flux through any closed surface is equal to times the net charge enclosed by the surface.
The circle on the integral means that the surface S is closed. The
net charge means the algebraic sum of the charge within the surface S.
Proof: Consider a charge +q placed at a point
O. Let P be a point at a distance r from O. The sowjanya satapathihttps://plus.google.com/117970606967475058687noreply@blogger.com0tag:blogger.com,1999:blog-1578988439064799234.post-33231350731840248712017-03-22T14:29:00.001+05:302017-03-22T14:29:09.226+05:30Thapar University 2017 Notification Released
What is Thapar University?
The Thapar Institute of Engineering and Technology University is today recognized among the leading privately managed engineering institutions of the country and the best of its kind in the north-western region of India. NAAC, an Autonomous Institution of UGC, has reaccredited Thapar Institute of Engineering and Technology University and award A Grade.
The TTC sowjanya satapathihttps://plus.google.com/117970606967475058687noreply@blogger.com0tag:blogger.com,1999:blog-1578988439064799234.post-6394032247230545272017-03-22T11:57:00.003+05:302017-03-22T11:57:59.497+05:30Brain Teaser 8 [With Answers]
Puzzle 1: Replace one letter in each step to change the word COLD to its opposite. Each step has to be a legitimate word.
COLD
?
?
?
?
Answer: WARM
Explanation:
COLD
CORD
WORD
WORM
WARM
Puzzle 2: Fill in the sequence:
ND, JF, MA, ?, ?, SO
Answer: MJ and JA
Explanation: "ND" is for November & December, "JF" is for January & February, "MA" is for March & April and sosowjanya satapathihttps://plus.google.com/117970606967475058687noreply@blogger.com0tag:blogger.com,1999:blog-1578988439064799234.post-72799544477525600072017-03-22T11:50:00.002+05:302017-03-22T11:51:27.841+05:30Common Tangents
Now we discuss the number of common tangents that exist for the cases specified in the section.
Case (i):
Each of the given pair of circles lies in the exterior of the other i.e. C₁C₂ > r₁ + r₂.
Sub case (i): r₁ ≠ r₂ (r₁, r₂ are radii of the circles)
In this case, there is a possibility of having two pairs of common tangents. The pair of common tangents intersecting at a point on sowjanya satapathihttps://plus.google.com/117970606967475058687noreply@blogger.com0tag:blogger.com,1999:blog-1578988439064799234.post-8201767247557556202017-03-20T15:17:00.000+05:302017-03-20T15:17:03.219+05:30Christian Medical College Vellore (CMC) 2017 Notification Released
What is CMC?
The Christian Medical College Vellore (CMC) is a large multi-speciality teaching hospital located in Tamil Nadu,
India, about 140 km to the west of Chennai.
Important Dates:
Online application start date
13th March 2017
Last Date for submission of online
applications with payment
15th June 2017
Last Date for submission of NEET score
sowjanya satapathihttps://plus.google.com/117970606967475058687noreply@blogger.com0tag:blogger.com,1999:blog-1578988439064799234.post-53660709932129076152017-03-20T11:55:00.003+05:302017-03-20T11:55:48.393+05:30Brain Teaser 8
Puzzle 1: Replace one letter in each step to change the word COLD to its opposite. Each step has to be a legitimate word.
COLD
?
?
?
?
Puzzle 2: Fill in the sequence:
ND, JF, MA, ?, ?, SO
Puzzle 3: Fill in the blanks in the following sentence with an anagram:
Almost a ________ started between two brothers to decide who will use their father's _________.
Puzzle 4: Paris,sowjanya satapathihttps://plus.google.com/117970606967475058687noreply@blogger.com0tag:blogger.com,1999:blog-1578988439064799234.post-91292340263189075592017-03-20T11:35:00.000+05:302017-03-20T11:35:05.040+05:30Temperature dependence of the rate of a reaction
1. Effect of temperature on reaction rate:
⇒ As the temperature increases, the average energy of the reaction increases, hence rate of reaction increases.
⇒ As a common rule, for every 10° rise of temperature, the rate of reaction will increase by 2 (or) 3 times of initial value.
⇒ According to Arrhenius concept:
η = η₀ e -Eₐ/RT
η₀ = total number of molecules
η = total number of sowjanya satapathihttps://plus.google.com/117970606967475058687noreply@blogger.com0tag:blogger.com,1999:blog-1578988439064799234.post-74953411931786335492017-03-19T13:16:00.001+05:302017-03-19T13:16:04.972+05:30TS EAMCET 2017 Notification Released
What is TS EAMCET?
The Engineering, Agriculture and Medical Common Entrance (TS
EAMCET) 2017 is being conducted by JNT University Hyderabad (JNTUH) on behalf
of Telangana State Council of Higher Education (TSCHE). This examination is the
prerequisite for admission into various professional courses offered in
University/Private Colleges in the state of Telangana.
Eligibility:
sowjanya satapathihttps://plus.google.com/117970606967475058687noreply@blogger.com0tag:blogger.com,1999:blog-1578988439064799234.post-65169831283350592962017-03-19T12:29:00.004+05:302017-03-19T12:29:52.607+05:3012 Simple Tips and Tricks to Prepare for Entrance Exams
1. Create a practical study plan:
Students
usually spend more time in planning than actually executing those plans. Planning is art of the possible. So, create a plan which can be successfully executed. Give more time to topics which you find difficult and keep a buffer so that you can complete some pending tasks.
2. Know your strength
and weakness:
Everyone has specific strengths and sowjanya satapathihttps://plus.google.com/117970606967475058687noreply@blogger.com0tag:blogger.com,1999:blog-1578988439064799234.post-7638341654031000292017-03-19T11:40:00.002+05:302017-03-19T16:26:34.496+05:30Electric Lines of Force
Michael Faraday (1791-1867) introduced the concept of lines of force for visualizing electric (and magnetic) fields.
An electric line of force is an imaginary curve drawn in such a way that the tangent at any point gives the direction of the electric field at that point.
Lines of force are imaginary, but the field they represent is real. These lines can be used to represent the field of a sowjanya satapathihttps://plus.google.com/117970606967475058687noreply@blogger.com0tag:blogger.com,1999:blog-1578988439064799234.post-51779659305492107582017-03-15T12:44:00.002+05:302017-03-15T12:44:10.983+05:30Useful tips to prepare for exams in short time
1. Calculate the time left for examination and prepare a time table that covers all the subjects/topics. Give proper breaks in between your preparation sessions to avoid over exertion. Don't try to secure more time for entertainment & rest breaks because from now on every single minute will count.
2. Prefer hard copies of study material over soft copies. Studying through PC's, Laptops sowjanya satapathihttps://plus.google.com/117970606967475058687noreply@blogger.com0tag:blogger.com,1999:blog-1578988439064799234.post-51578672223485472472017-03-15T12:01:00.003+05:302017-03-15T12:01:39.086+05:30Tangents
From a given point two tangents can be drawn to a circle which are real and distinct, coincident or imaginary according as the given point lies outside on or inside the circle.
The combined equation of the pair of tangents drawn from point P(x₁, y₁) to the circle x² + y² = a² is (x² + y² - a²) (x₁² + y₁² - a²) = (xx₁² + yy₁² - a²)²
⇒ SS₁ = T² where T = xx₁ + yy₁ - a²
Length of the sowjanya satapathihttps://plus.google.com/117970606967475058687noreply@blogger.com0tag:blogger.com,1999:blog-1578988439064799234.post-467724040982688502017-03-14T12:13:00.001+05:302017-03-14T12:13:06.842+05:30How to prepare for JEE Mains
1. Know about the exam:
Knowing about the exam will give you the advantage of
starting preparations in the right direction.
Exam Pattern
Eligibility
Important Dates
Syllabus
Scoring and Results
Application Form
Cut Off’s
Colleges
Admit Cards
2.
Pay attention in class:
Most topics in the syllabus of JEE Main are same as those taughtsowjanya satapathihttps://plus.google.com/117970606967475058687noreply@blogger.com0tag:blogger.com,1999:blog-1578988439064799234.post-31185980245189767312017-03-14T11:34:00.003+05:302017-03-14T12:17:32.543+05:30Quantitative Aspects of Electrolysis
These are governed by the Faraday’s laws of electrolysis
First law of Electrolysis:
The amount of chemical change produced is proportional to the quantity of electric charge passing through an electrolytic cell. Greater the number of moles of electrons transferred, the greater the mass of the products.
W α Q (charge)
Charge = (current) ✕ time
W = Zit
W = Mass of the metal sowjanya satapathihttps://plus.google.com/117970606967475058687noreply@blogger.com0