Physics questions
20027 published questions with worked solutions.
- Light of frequency 1.5 times the threshold frequency is incident on a photosensitive material. What will be the photoelectric...
- A wire of length L, area of cross section A is hanging from a fixed support. The length of the wire changes to L1 when mass M is...
- The average thermal energy for a mono-atomic gas is : (kB is Boltzmann constant and T, absolute temperature)
- In Young’s double slit experiment, if the separation between coherent sources is halved and the distance of the screen from the...
- The capacitance of a parallel plate capacitor with air as medium is 6 . With the introduction of a dielectric medium, the...
- Dimensions of stress are :
- Assume that light of wavelength 600 nm is coming from a star. The limit of resolution of telescope whose objective has a diameter...
- A series LCR circuit is connected to an ac voltage source. When L is removed from the circuit, the phase difference between...
- A short electric dipole has a dipole moment of 16 10^ -9 C m. The electric potential due to the dipole at a point at a distance...
- An iron rod of susceptibility 599 is subjected to a magnetising field of 1200 A m^ -1 . The permeability of the material of the...Not in JEE Advanced syllabus
- A long solenoid of 50 cm length having 100 turns carries a current of 2.5 A. The magnetic field at the centre of the solenoid is...
- A charged particle having drift velocity of 7.5 10^ -4 m s^ -1 in an electric field of 3 10^ -10 V m^ -1 , has a mobility in m^2...
- The quantities of heat required to raise the temperature of two solid copper spheres of radii r_1 and r_2 (r_1=1.5 ,r_2) through...
- Taking into account of the significant figures, what is the value of 9.99 m - 0.0099 m ?
- A ball is thrown vertically downward with a velocity of 20 m/s from the top of a tower. It hits the ground after some time with a...
- A capillary tube of radius r is immersed in water and water rises in it to a height h. The mass of the water in the capillary is...
- A resistance wire connected in the left gap of a metre bridge balances a 10 resistance in the right gap at a point which divides...
- Two hollow conducting spheres of radii R_1 and R_2 (R_1 R_2) have equal charges. The potential would be :
- When two monochromatic lights of frequency, and 2 are incident on a photoelectric metal, their stopping potential becomes V_s 2...
- Match List - I with List - II : List-I (Electromagnetic waves): (a) AM radio waves (b) Microwaves (c) Infrared radiations (d)...