Physics questions
20027 published questions with worked solutions.
- If the mass of the bob in a simple pendulum is increased to thrice its original mass and its length is made half its original...
- An iron bar of length L has magnetic moment M. It is bent at the middle of its length such that the two arms make an angle 60^...Not in JEE Advanced syllabus
- A small telescope has an objective of focal length 140 cm and an eye piece of focal length 5.0 cm. The magnifying power of...
- The Brewsters angle ib for an interface should be :
- A ray is incident at an angle of incidence i on one surface of a small angle prism (with angle of prism A) and emerges normally...
- Two cylinders A and B of equal capacity are connected to each other via a stop cock. A contains an ideal gas at standard...
- The energy equivalent of 0.5 g of a substance is :
- A body weighs 72 N on the surface of the earth. What is the gravitational force on it, at a height equal to half the radius of...
- The solids which have the negative temperature coefficient of resistance are :Not in JEE Advanced syllabus
- The phase difference between displacement and acceleration of a particle in a simple harmonic motion is :
- A screw gauge has least count of 0.01 mm and there are 50 divisions in its circular scale. The pitch of the screw gauge is :
- In a guitar, two strings A and B made of same material are slightly out of tune and produce beats of frequency 6 Hz. When tension...
- Two particles of mass 5 kg and 10 kg respectively are attached to the two ends of a rigid rod of length 1 m with negligible mass....
- Light with an average flux of 20 W/cm^2 falls on a non-reflecting surface at normal incidence having surface area 20 cm^2. The...
- A spherical conductor of radius 10 cm has a charge of 3.2 10^ -7 C distributed uniformly. What is the magnitude of electric field...
- In a certain region of space with volume 0.2 m^3, the electric potential is found to be 5 V throughout. The magnitude of electric...
- The increase in the width of the depletion region in a p-n junction diode is due to :Not in JEE Advanced syllabus
- A 40 µF capacitor is connected to a 200 V, 50 Hz ac supply. The rms value of the current in the circuit is, nearly :
- The mean free path for a gas, with molecular diameter d and number density n can be expressed as :
- For transistor action, which of the following statements is correct ?Not in JEE Advanced syllabus