What is the shape of the wave front in each of the following cases :
the portion of the wavelength of light from a distant star intercepted by the Earth

What is the shape of the wavefront in each of the following cases : light diverging from a point source

What is the nature of the wave front associated with a parallel beam of light ?

What is wavefront ? What is the shape of the wavefront at a point far away from the source of light?

The threshold wavelength of tungsten is 2.76 xx 10^-5 cm .What will be the maximum kinetic energy of electrons ejected in each of the following cases: if ultraviolet radiation of wavelength lambda = 1.80 xx 10^-5 cm .

Select and write the correct answer from the given alternatives in each of the following:the equation of the line which passes through the point (1,-2) and cuts off equal intercepts from the axes is

The threshold wavelength of tungsten is 2.76 xx 10^-5 cm .What will be the maximum kinetic energy of electrons ejected in each of the following cases: radiation of frequency 4 xx 10^15 Hz is made incident on the tungsten surface.

The wave front obtained from a source of light is cylindrical at time t, When the source of light is

Assertion : The colour of thelight can be assessed from the wavelength of light waves. Reason : Intensite = ("Amplitude")^2

Choose the correct alternative for each of the following questions: What is the probability of the event that a number chosen from 1 to 50 is an odd number ?