In the Young's double slit experiment the separation between the slits is halved and the distance between the slits and the screen is doubled the fringe width is
The half-life of a certain element is 3.5 days at STP. If the temperature is doubled and
pressure is reduced to half then half-life of the same element will be:
The value of acceleration due to gravity on the surface of the earth is g.If the diameter of the earth becomes double of its present value and its mass remains unchanged, the value of acceleration due to gravity on the surface of the earth would become
If a light of λ = 588 nm falls on half silvered glass plate in Michelson s interferometer if movable mirror is moved through 0.233 mm the number of fringes will be observed to shift
If the acceleration due to gravity at the earth's surface is 9.8 m/s2 and the mass of the earth is 80 times that of moon and radius of earth 4 times that of moon,the value of G at the moos's surface will be:
By which velocity a ball be projected vertically so that the distance covered by it in 5th seconds is twice the distance it covers in its 6th second (g = 10 m/s2).
