Physics questions
20027 published questions with worked solutions.
- For a periodic motion represented by the equation y = sin + cos the amplitude of the motion is -
- A massage signal of frequency 3 kHz is used to modulate a carrier signal of frequency 1.5 MHz. The bandwidth of the amplitude...Not in JEE or NEET syllabus
- The time period of a satellite, revolving above earth's surface, at a height equal to R will be - (Given g = ^2 m/s^2, R = radius...
- In a metallic conductor, under the effect of applied electric field, the free electrons of the conductor
- A bar magnet is released from rest along the axis of a very long vertical copper tube. After some time the magnet will -
- A gas mixture consists of 2 moles of oxygen and 4 moles of neon at temperature T. Neglecting all vibrational modes, the total...
- In an experiment with vernier callipers of least count 0.1 mm, when two jaws are joined together the zero of vernier scale lies...
- Given below are two statements: Statement I: For diamagnetic substance -1 x<0, where x is the magnetic susceptibility. Statement...Not in JEE Advanced syllabus
- A square loop of side 2.0 cm is placed inside a long solenoid that has 50 turns per centimetre and carries a sinusoidally varying...
- If the maximum load carried by an elevator is 1400 kg (600 kg – Passengers + 800 kg - elevator), which is moving up with a...
- A rectangular parallelopiped is measured as 1 cm × 1 cm × 100 cm. If its specific resistance is 3 10^ -7 , then the resistance...
- A rectangular block of mass 5 kg attached to a horizontal spiral spring executes simple harmonic motion of amplitude 1 m and time...
- A physical quantity P is given as P = a^2b^3 c d The percentage error in the measurement of a, b , c and d are 1%, 2%, 3% and 4%...
- A carrier wave of amplitude 15 V is modulated by a sinusoidal base band signal of amplitude 3 V. The ratio of maximum amplitude...Not in JEE or NEET syllabus
- The angular momentum for the electron in Bohr's orbit is L. If the electron is assumed to revolve in second orbit of hydrogen...
- Assuming the earth to be a sphere of uniform mass density, the weight of a body at a depth d = R 2 from the surface of earth. if...
- The de Broglie wavelength of a molecule in a gas at room temperature (300 K) is _1. If the temperature of the gas is increased to...
- Consider two containers A and B containing monoatomic gases at the same Pressure (P), Volume (V) and Temperature (T). The gas in...
- The energy of an electromagnetic wave contained in a small volume oscillates with
- The range of the projectile projected at an angle of 15° with horizontal is 50 m. If the projectile is projected with same...