Physics questions
20027 published questions with worked solutions.
- The time period of oscillation of a simple pendulum having length L and mass of the bob m is given as T. If the length of the...
- The connecting cable of electrical appliances like electric iron, water heater or room heater contains three insulated copper...
- Consider the following statements about a microscope and a telescope : 1. Both the eyepiece and the objective of a microscope are...
- A planet has a mass M_1 and radius R_1. The value of acceleration due to gravity on its surface is g_1. There is another planet...
- The wavelength of X-rays is of the order of
- If the focal length of a convex lens is 50 cm, which one of the following is its power?
- The coefficient of areal expansion of a material is 1 6 10^ -5 K ^ -1 . Which one of the following gives the value of coefficient...
- The refractive indices of two media are denoted by n_1 and n_2, and the velocities of light in these two media are respectively...
- Which one of the following statements is correct for a plane mirror?
- An object is placed in front of a convex mirror. Which one of the following statements is correct?
- A circular coil of radius R having N number of turns carries a steady current I. The magnetic induction at the centre of the coil...
- The light energy escaping from the Sun can be spread by
- The correct sequence of energy transfer that occurs when an apple falls to the ground is
- Which one of the following can charge an insulator ?
- At 20°C, the speed of sound in water is approximately
- Which one of the following could be the melting point of iron ?
- Let us consider a copper wire having radius r and length l. Let its resistance be R. If the radius of another copper wire is 2r...
- Basic scientific principle behind a nuclear reactor is
- Who among the following has explained the phenomenon of photoelectric effect ?
- Two metallic wires A and B are made using copper. The radius of wire A is r while its length is l. A dc voltage V is applied...