List of top Physics Questions

Two parallel wire carries current I1 and I2 are separated by distance d. Force per unit length of wire is F. Then :
A real object is on principle axis of concave mirror of focal length 2m object distance from pole is 8m. Find image distance.
Find pressure on swimmer at a depth of 10 m in water
Velocity is given by v = 4t(1 - 2t) then find time at which velocity is maximum
If compressibility of material is 4 × 10-5 per atm, pressure is 100 atm and volume 100 cm3 find a ΔV =
Find a capacitance
Electric circuit
A missile is fired at 30° angle from horizontal with 90 m/s find time of flight
A particle is thrown vertically up with speed 6m/s find maximum height achieved
For uranium nucleus. Find relation between mass and volume
If current in inductor of 5 mH varying as I = t2.e-2t then find time after which voltage drop across inductor become zero.
If in isothermal process Δw work is done by gas, then choose incorrect
In YDSE S1 and S2 has intensity I and 9I. Find difference in intensity b/w point which has phase difference of π/2 and π.
In YDSE if white light is used then.
If a machine perform 4000 J output work and 1000 J is inside loss due to friction find efficiency = ?
If point charges Q1 = 2 × 10-7 C and Q2 = 3×10-7 C are at 30 cm separation. Find electrostatic force them.
Which is wrong dimension ?
A vernier least count 0.1 mm percentage error in volume of cube of side 30 mm.
Dimension of force is
Which one of the following is not emitted by radioactive elements ?
A $10\, V$ battery with internal resistance $1\, \Omega$ and a $15\, V$ battery with internal resistance $0.6\, \Omega$ are connected in parallel to a voltmeter (see figure). The reading in the voltmeter will be close to :
In a bar magnet, the ratio of magnetic length to geometrical length is nearly
Find current, i.
The work done by a given force on a body depends only on
Why there are two propellers in a helicopter ?
Two small charged spheres have charges of $ 2 \times 10^{-7}\, C $ and $ 3 \times 10^{-7}C $ . They are placed $ 30\,cm $ apart in air. What is the force between them ?