List of practice Questions

What is the ratio of speed of wave in medium 1 and 2 ?

A mass of 200 gm has initial velocity \(v_i = 2\hat{i}+3\hat{j}\) and final velocity \(v_f=-2\hat{i}-3\hat{j}\) find magnitude of change in momentum

A spring of spring constant k is cut into 3 equal part find k of each

If speed of sound in air is 340 m/s and in water 1480 m/s. If frequency of sound is 1000 kHz then find wavelength in water.

Loudness of sound defines on

A nuclear of mass number A emits a particle speed of a particle is v then what is recoil speed of nuclease.

A positive charge particle is released in electric field in case (a) it is just released and in case (b) it has initial speed v₀ along electric field. If after sometime its kinetic energy in case (a) and (b) are k₁ and k₂ then,

Fermer bone has base n average cross section area 100 cm² supporting mass of 40 kg of man find average pressure

If 2 wire of length L1 and L2 and Young's modulus Y₁ and Y₂ are in series then effective Young's modulus is

If accelerating voltage of X-ray tube is 13 kV find minimum wavelength of X-ray,

Two wave in string have same velocity. If linear mass density of string are μ₁ = 5, μ₂ = 20 T₁ = 40 then , T₂ = ?

Which of the following represents isotope, isobar isotones respectively ?

A capacitor has capacitance 2F. plate separation 0.5 cm then area of plate

A particle performing SHM for maximum speed 50 m/s so and maximum acceleration = 100 m/s² then time period of SHM ?

For a permanent magnet, properties of material should be

Pressure in non uniform cross section wire will be least at

Two concentric circular coil of radius 20 cm and 30 cm carries current 2A and 3A respectively in opposite direction then magnetic field at centre will be :-

V_P - V_Q = ?

A real object is on principle axis of concave mirror of focal length 2m object distance from pole is 8m. Find image distance.

Find a capacitance

Find pressure on swimmer at a depth of 10 m in water

If compressibility of material is 4 × 10^-5 per atm, pressure is 100 atm and volume 100 cm³ find a ΔV =

Two parallel wire carries current I₁ and I₂ are separated by distance d. Force per unit length of wire is F. Then :

Velocity is given by v = 4t(1 - 2t) then find time at which velocity is maximum

A missile is fired at 30° angle from horizontal with 90 m/s find time of flight