Light

Which of the following is true about the image formed by a plane mirror?

• The image is real and inverted

• The image is virtual and upright

• The image is real and upright

• The image is virtual and inverted

What happens when light passes from a denser medium to a rarer medium?

• It bends towards the normal

• It bends away from the normal

• It does not change its direction

• It disappears

Which of the following is the correct formula for the refractive index of the medium?

• speed of light in medium / speed of light in vacuum

• speed of light in vacuum / speed of light in medium

• angle of refraction / angle of incidence

• None of the above

When a ray of light passes through the center of curvature of a concave mirror, what happens?

• It reflects back along the same path

• It gets absorbed

• It bends towards the normal

• It refracts

Which of the following phenomena occurs when light passes from air to glass?

• Refraction only

• Reflection only

• Diffraction only

• Both refraction and reflection