Physics

A generator at a utility company produces 100 A of current at 4000 V. The voltage

A generator at a utility company produces 100 A of current at 4000 V. The voltage is stepped up to…

The dimensional formula for Young’s modulus is

The dimensional formula for Young's modulus is Options (a) [ML⁻¹T⁻²] (b) [M⁰LT⁻²] (c) [MLT⁻²] (d) [ML²T⁻²] Correct Answer: [ML⁻¹T⁻²] Explanation:…

The heat dissipated in a resistance can be obtained by measuring of resistance,

The heat dissipated in a resistance can be obtained by measuring of resistance, the current and time. The maximum error…

A uniform chain of length L and mass m is kept on a smooth table. It is released

A uniform chain of length L and mass m is kept on a smooth table. It is released from rest…

A bomb of mass 16 kg at rest explodes into two pieces of masses of 4 kg and 12 kg.

A bomb of mass 16 kg at rest explodes into two pieces of masses of 4 kg and 12 kg.…

A sound source is moving towards a stationary listener with 1/10th of the speed

A sound source is moving towards a stationary listener with 1/10th of the speed of sound. The ratio of apparent…

If the length of a closed organ pipe is 1.5 m and velocity of sound is 330 m/s,

If the length of a closed organ pipe is 1.5 m and velocity of sound is 330 m/s, then the…

The parallel beams of monochromatic light of wavelength 4.5 x10⁻⁷ m passes through

The parallel beams of monochromatic light of wavelength 4.5 x10⁻⁷ m passes through a long slit with width 0.2x10⁻³ m.…

A beam of light contains two wavelengths 6500Å and 5200Å.

A beam of light contains two wavelengths 6500Å and 5200Å. They form interference fringes in Young's double slit experiment. What…

An ideal gas is expanding such that PT²=constant. The coefficient of volume

An ideal gas is expanding such that PT²=constant. The coefficient of volume expansion of the gas is Options (a) 1/T…