a running man has half the kinetic energy that a boy of half his mass has.the man speed up by 1m/s and then has the same kinetic energy as the body. what were the original speeds of man and boy?
A rear view mirror used in a bus has a radius of curvature 3.5 m. If the driver of the bus locates a car at 10.0m behind the bus, find the position, nature and size of the image of the car.
f = r/2=-1.75
Is there really a parallel universe?
As of now, the answer is not final. There are different ideas and explanation given on parallel universes. Some say if parallel universe are far away from
How light has a dual nature?
A photon has zero rest mass. Explain how ?
(These questions were posted by Shubham SInha and Ritika Chatak)
The dual nature of light has been established through
Find below the links to questions papers in Physics already available at our group of Physics websites
An object is placed 18cm in front of a spherical mirror. if the image formed is 4cm to the right of the mirror calculate the focal length and radius of curvature? what is the nature of the mirror?