When light is refracted, which of the following does not change ? (a) Wavelength (b) Frequency

(i) Energy (E) of a photon is given by the expression, E=hv Where, h = Planck’s constant = 6.626 × 10–34 Js ν = frequency of light = 3 × 1015 Hz Substituting the...

After refraction at two parallel faces of a glass slab, a ray of light emerges in a direction parallel to the direction of incidence of white light. As rays of...

(c) : For interference, by Young’s double slits, the path difference xd/D= nλ for bright fringes and xd/D = (2n +1)λ/2 for getting dark fringes. The central fringes when x =...

(d) Frequency. EXPLANATION:  When the sound wave is refracted from air to water, due to the change in B and ρ the velocity of the sound V changes. Hence the options (a)...

(c) its wavelength decreases but frequency remains unchanged EXPLANATION:    When light is refracted into a medium its speed changes but the frequency remains the same because the energy associated with a...

(b) Frequency.

(c) depends on its power (d) depends on the wavelength emitted.

From the definition of critical angle, if refracted angle is more than 90°, then reflection occurs, which is known as total internal reflection. So, maximum angle of refraction is 90°.

(a) In the position of minimum deviation, i1 = i2 .

(d) Radio waves are a form of electromagnetic radiation, created whenever a charged object (in normal radio transmission, an electron) accelerates with a frequency that lies in the radio frequency...