Geometric and Physical Optics

An electromagnetic wave has a wavelength of 3 \times 10^{-7} meters. What is its frequency?

An object of height 5 cm is placed 20 cm in front of a concave mirror with a focal length of -10 cm. What is the height and nature of the image?

In the wave equation $y(x, t) = A \sin(kx - \omega t + \phi)$, what does the term 'A' represent?

Which of the following describes the phenomenon where light bends as it passes from one medium to another?

A ray of light travels from air ($n_1 = 1$) into water ($n_2 = 1.33$) at an angle of incidence of 30°. What is the angle of refraction in the water?

What occurs when two waves are in phase and overlap?

Under what condition does destructive interference occur?

Which of the following types of electromagnetic radiation has the longest wavelength?

A light ray is incident on a glass slab (n=1.5) at an angle such that the reflected and refracted rays are perpendicular to each other. What is the angle of incidence?

An object is placed 30 cm from a lens with a focal length of 10 cm. What is the image distance?