List of top Physics Questions

An air bubble in water ($ \mu = \frac{4}{3} $) is shown in the figure. The apparent depth of the image of the bubble in a plane mirror viewed by the observer is.

The displacement of a plane progressive wave in a medium, traveling towards the positive x-axis with velocity 4m/s at t=0 is given by \(y=3sin2\pi(-\frac{x}{3})\). Then the expression for the displacement at a later time t=4 sec will be
Given below are two statements:
  • Assertion (A): A pendulum clock when taken to Mount Everest becomes fast.
  • Reason (R): The value of \( g \) (acceleration due to gravity) is less at Mount Everest than its value on the surface of Earth.
In the light of the above statements, choose the most appropriate answer from the options given below:

An ideal diatomic gas is made up of molecules that do not vibrate. Its volume compressed by a factor of 32,without any exchange of heat. If the initial and final pressures are P1 and P2,respectively,the ratio P1:P2,is:

Two resistances are given as \(R_1=(10 ±0.5) Ω\) and \(R_2= (15±0.5) Ω\). The percentage error in the measurement of equivalent resistance when they are connected in parallel is -
Which of the following eye defect is age related ?
Least distance of distinct vision is____
Which parts of the eye controls the intensity of light, while entering into the eye?
Choose correct option regarding magnetic lines of force
According to Ohm's law relation between potential difference (V) and current (I) is
When white light is incident on a glass prism, the least deviated colour is
Sensation of vision in the retina is carried to the brain by
Which of the following converts mechanical energy into electrical energy?
If area of cross section of a wire increases, while temperature and length are constant, then resistance of the wire
Unit of Magnetic flux is
The lens which always give a diminished and virtual image is
Air bubble in water behaves like a
A virtual image is formed by a concave mirror when the object is placed
Which molecules are responsible for the blue colour of the sky ?
If the magnification of the mirror is greater than 1, then the mirror is
Convex lens is used in the microscope due to the following reason
The radius of curvature of a spherical mirror is 16 cm. What is the focal length ?
The kilowatt hour is the unit of
According to which law 'Induced emf generated in a closed loop is equal to the rate of change of magnetic flux passing through it' ?
According to 'Right hand thumb rule', if thumb of a right hand indicates direction of current passing through a straight conductor, then curled fingers of the same hand represent