Physics questions
20027 published questions with worked solutions.
- If a wave gets refracted into a denser medium, then which of the following is true?
- A mass of 10 kg is suspended vertically by a rope of length 5 m from the roof. A force of 30 N is applied at the middle point of...
- A diatomic gas ( = 1.4) does 400 J of work when it is expanded isobarically. The heat given to the gas in the process is _____ J.
- A particle executes simple harmonic motion. Its amplitude is 8 cm and time period is 6 s. The time it will take to travel from...
- The current density in a cylindrical wire of radius r = 4.0 mm is 1.0 10^ 6 A/m^ 2 . The current through the outer portion of the...
- A deuteron and a proton moving with equal kinetic energy enter into a uniform magnetic field at right angle to the field. If r_d...
- A metallic rod of length 20 cm is placed in North-South direction and is moved at a constant speed of 20 m/s towards East. The...
- A projectile is launched at an angle ' ' with the horizontal with a velocity 20 ms^ -1 . After 10s, its inclination with...
- A girl standing on road holds her umbrella at 45° with the vertical to keep the rain away. If she starts running without umbrella...
- A silver wire has a mass (0.6 0.006) g, radius (0.5 0.005) mm and length (4 0.04) cm. The maximum percentage error in the...
- Two blocks of masses 10 kg and 30 kg are placed on the same straight line with coordinates (0, 0) cm and (x, 0) cm respectively....
- A 72 galvanometer is shunted by a resistance of 8 . The percentage of the total current which passes through the galvanometer is
- Given below are two statements Statement-I: The law of gravitation holds good for any pair of bodies in the universe....
- What percentage of kinetic energy of a moving particle is transferred to a stationary particle when it strikes the stationary...
- The velocity of a small ball of mass 'm' and density d_ 1 , when dropped in a container filled with glycerine, becomes constant...
- The susceptibility of a paramagnetic material is 99. The permeability of the material in Wb/A-m, is [Permeability of free space _...Not in JEE Advanced syllabus
- Match List-I with List-II List-I: (a) Ultraviolet rays (b) Microwaves (c) Infrared waves (d) X-rays List-II: (i) Study crystal...
- The displacement of simple harmonic oscillator after 3 seconds starting from its mean position is equal to half of its amplitude....
- An observer moves towards a stationary source of sound with a velocity equal to one-fifth of the velocity of sound. The...
- Consider a light ray travelling in air is incident into a medium of refractive index 2n . The incident angle is twice that of...