An object of mass 3kg is at rest. Now a force F=6t² i⃗+4t j⃗ is applied on the object
An object of mass 3kg is at rest. Now a force F=6t² i⃗+4t j⃗ is applied on the object. Then…
7 years ago
Physics
If the red light is replaced by blue light illuminating the object in a microscope
If the red light is replaced by blue light illuminating the object in a microscope, the resolving power of the…
7 years ago
A boat of anchor is rocked by waves whose crests are 100 m apart and velocity
A boat of anchor is rocked by waves whose crests are 100 m apart and velocity is 25 m/s. The…
7 years ago
When the length of the vibrating segment of a sonometer wire is increased by
When the length of the vibrating segment of a sonometer wire is increased by 1%, the percentage change in its…
7 years ago
Sodium and copper have work function 2.3 eV and 4.5 eV respectively
Sodium and copper have work function 2.3 eV and 4.5 eV respectively. The ratio of their threshold wavelengths is nearest…
7 years ago
The velocity of sound is V, in air. If the density of air is increased to four times
The velocity of sound is V, in air. If the density of air is increased to four times, then the…
7 years ago
Light from the constellation Virgo is observed to increase in wavelength by 0.4%
Light from the constellation Virgo is observed to increase in wavelength by 0.4%. With respect to earth the constellation is…
7 years ago
Heat is supplied at constant pressure to diatomic gas. The part of this heat that goes
Heat is supplied at constant pressure to diatomic gas. The part of this heat that goes to increase its internal…
7 years ago
Two masses of 9 g and 6 g are connected with a string which is passing over a frictionless
Two masses of 9 g and 6 g are connected with a string which is passing over a frictionless pulley.…
7 years ago
If a body travels half the distance with velocity v1 and the next half with velocity v2
If a body travels half the distance with velocity v1 and the next half with velocity v2, its average velocity…
7 years ago