Physics MCQs

1) Which one of the following is used to measure the wavelength X-rays

a)    Young’s double slit experiment

b)   Diffraction grating

c)    Bragg’s equation

d)   Stefan’s law

2) Wavelength of x-rays is of the order of

a)    10 A⁰

b)   1 A⁰

c)    10 ^-10cm

d)   10 ^-12cm

3) Light which has the same property in all directions of vibrations is known as

a)    Polarized light

b)   Monochromatic light

c)    Un-polarized light

d)   None of these

1.c

2.b

3.c