Physics

If an object is placed between the focus and the optical center of a convex lens, the image is:

The angle of deviation of a prism is minimum when:

A ray of light enters from glass (n=1.5) to water (n=1.33). The ray will:

What is the shape of the wavefront for light coming from a very distant star?

Which of the following describes the 'Lateral Displacement' of light?

A convex mirror always forms an image that is:

Which color deviates the most in a rainbow?

What is the magnification if the object height is 5 cm and the image height is 10 cm?

A lens of power +2.5 D is used by a person. What is the type of defect and the focal length?

The focal length of a concave mirror is 10 cm. If an object is at 20 cm, where is the image?

The 'Mirage' phenomenon is an example of:

When light enters a prism, why does it split?

What is the effect of increasing the aperture of a mirror on its focal length?

If the speed of light in a medium is 1.5 x 10^8 m/s, what is the critical angle for that medium with respect to air?

A compound microscope uses:

Two thin lenses of focal lengths 20 cm and 25 cm are placed in contact. The effective power of the combination is:

An object is placed at a distance of 12 cm from a concave mirror of focal length 8 cm. Find the image distance.

A ray of light passes through three media with refractive indices n1, n2, and n3. If n1 > n2 > n3, which medium has the smallest angle of refraction?

If the refractive index of glass is 1.5 and that of water is 1.33, what is the refractive index of glass with respect to water?

A convex lens forms a real image of a point object at a distance of 50 cm. If the object is at 50 cm, what is the power?