The optical resolution of microscope or a telescope tells us how close together, the two point sources of light can be so that they are still seen as two separate sources
The length breadth and thickness of a block are given by 1= 12 cm b= 6 cm and t= 2.45 cm.the volume of the block according to the idea of significant figures should be:
A body falls freely from rest.It covers as much distance in the last second of its motion as covered in the first three seconds.The body has fallen for a time of
Light of wavelength 800 n m is incident on a pair of slits, forming fringes 4.0 mm apart on a screen. What is the fringe when light of 400 nm is used and the slit separation is halved?
The high-tensile steel used to support the roadway of a suspension bridge breaks under a stress of 2 x 109Pa. Find the minimum cross-sectional area for a cable if it is to support a load of mass 2 x 105kg.
Sharks due to their special organs, the "ampulae of lorenzini due to which they can detect the potential difference and can locate their prey very precisely of the order of
An artificial satellite travels in a circular orbit about the Earth. Its rocket engine is then fired and produces a force on the satellite exactly equal and opposite to that exerted by the Earth gravitational field. The satellite would then start to move
