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Electromagnetic waves
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0
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2252
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September 15, 2017
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The carrier wave is given by C(t)=2sin(8πt) volt. The modulating signal is a square wave . Calculate the modulation index
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1
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9926
|
August 16, 2017
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Given a uniformly charged plane/sheet of surface charge density
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2
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10020
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July 27, 2017
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Physics 2nd part of Q 7 related to wave optics
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0
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1965
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March 12, 2017
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Consider a two slit interference arrangement (shown in figure) such that the distance of the screen from the slits is half the distance between the slits
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2
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6716
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February 19, 2017
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You are given two converging lenses of focal length 1.25 cm
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2
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8119
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February 18, 2017
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A concave mirror of small aperture forms a sharper image. Why?
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0
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6450
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December 12, 2016
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Suppose while sitting in a parked car
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1
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8952
|
December 12, 2016
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When monochromatic light travels from a rarer to a denser medium, explain the following, giving reasons
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1
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4203
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December 12, 2016
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You have learnt that plane and convex mirrors produce virtual images of objects. Can they produce real images under some circumstances? Explain
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1
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6212
|
December 12, 2016
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The image obtained with a convex lens is erect
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1
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3843
|
December 12, 2016
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A convex lens of focal length 30 cm is placed coaxially with a convex mirror of radius of curvature 20 cm
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1
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4203
|
December 12, 2016
|
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Figure shows an equiconvex lens
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1
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7348
|
December 12, 2016
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A screen is placed 90 cm from an object
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1
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2758
|
December 12, 2016
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The near vision of an average person is 25 cm
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1
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3829
|
December 12, 2016
|
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You are given prisms made of crown glass and flint glass with a wide variety of angles
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1
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2853
|
December 12, 2016
|
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A man with normal near point (25 cm) reads a book with small print using a magnifying glass
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1
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7211
|
December 12, 2016
|
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A small telescope has an objective lens of focal length 140 cm
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1
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4977
|
December 12, 2016
|
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An astronomical telescope uses two lenses of power 10 D and ID. What is its magnifying power in normal adjustment?
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0
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3590
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December 12, 2016
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The objective of an astronomical telescope
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1
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2618
|
December 12, 2016
|
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How is the working of telescope different
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1
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2321
|
December 12, 2016
|
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Calculate the value of R in the balance condition of the Wheatstone bridge
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1
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7419
|
December 12, 2016
|
|
Write two possible causes for one sided deflection in a potentiometer experiment
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0
|
9437
|
December 12, 2016
|
|
Why are the connections between the resistors in a meter bridge made of thick copper strips?
|
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1
|
23633
|
December 12, 2016
|
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Determine the current in each branch of the following network
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1
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8912
|
December 12, 2016
|
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AB is a potentiometer wire as shown in figure
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1
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3250
|
December 12, 2016
|
|
In the meter bridge experiment, the balance point
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1
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6529
|
December 12, 2016
|
|
Six lead-acid type of secondary cells each of emf 2 V
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1
|
7109
|
December 12, 2016
|
|
Write any two factors on which internal resistance of a cell depends
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1
|
11266
|
December 12, 2016
|
|
First a set of n equal resistors of R
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1
|
3218
|
December 12, 2016
|