Physics

If the error in the measurement of momentum of particle is (+100%)

If the error in the measurement of momentum of particle is (+100 % ), then the error in the measurement…

A boat of mass 40 kg is at rest.A dog of mass 4 kg moves in the boat

A boat of mass 40 kg is at rest.A dog of mass 4 kg moves in the boat with a…

A ship A is moving westwards with a speed of 10 km/h .The time after

A ship A is moving westwards with a speed of 10 km/h .The time after which the distance between them…

If A=4i+4j+4k and b=3i+j+4k, then angle between vectors A and B is

If A=4i+4j+4k and b=3i+j+4k, then angle between vectors A and B is Options (a) 180゚ (b) 90゚ (c) 45゚ (d)…

If h is planck’s constant and λ is wavelength, h/λ has dimensions of

If h is planck's constant and λ is wavelength, h/λ has dimensions of Options (a) momentum (b) energy (c) mass…

The horizontal range and the maximum height of a projectile are equal

The horizontal range and the maximum height of a projectile are equal. The angle of projection of the projectile is…

A missile is fired for maximum range with an initial velocity of 20 m/s

A missile is fired for maximum range with an initial velocity of 20 m/s. If g = 10 m/s², the…

If R is the radius of the earth and g is the acceleration due to gravity

If R is the radius of the earth and g is the acceleration due to gravity on the earth surface,…

Which of the following pairs of quantities does not have same dimensional

Which of the following pairs of physical quantities does not have same dimensional formulae? Options (a) work and torque (b)…

A particle moves a distance x in time but according to equation x=(t+5)⁻¹

A particle moves a distance x in time but according to equation x=(t+5)⁻¹.The acceleration of particle is proportional to Options…