Allied Physics

A beam of white light, when it passes through a prism, is split up into the constituent colors is called

• Diffraction

• Dispersion

• Reflection

• Refraction

The pair of conjugate points in the lens system free from spherical aberration and coma are called

• Aplanatic points

• Cardial points

• Focal points

• Principal points

The phenomenon of superposition of two coherent waves in the region of superposition is called

• Polarisation

• Reflection

• Diffraction

• Interference

The bending of light waves around corners and their spreading into the geometrical shadow of an object is called

• Interference

• Polarisation

• Diffraction

• Dispersion

The property of rotating the plane of vibration of polarised light by certain crystals and other substances is called

• Double Refraction

• Optical Activity

• E-ray

• O-ray

____ of the optical fibre is a measure of the amount of light rays than can be accepted by the fibre.

• Numerical aperture

• Angle of acceptance

• Light gathering power

• Critical angle

_____ rays penerate more deeply through the human skin than ordinary light

• UV rays

• Raman rays

• Infrared ray

• X-rays

When a beam of monochromatic light is passed through organic liquids, the scattered light contained other frequencies addition to that of the incident light is known as

• Photoelectric effect

• Raman effect

• Mutual exclusion principle

• Infrared rays

The laws of Physics are the same in all inertial frames of reference.

• True

• False

Who proposed that matter, like radiation, has dual nature?

• De-broglie

• Bohr

• Einstein

• Lorentz