Class 10 - Science

Light Reflection and Refraction Online MCQ Test

Olympiad Level MCQs Also Included

Set-1 Set-2 Set-3 Set-4 Set-5 Set-6 Set-7 Set-8

1. When a light ray passes from air into a denser medium like glass, what happens to its speed and wavelength?

(A) Speed increases, wavelength decreases
(B) Speed decreases, wavelength decreases
(C) Speed increases, wavelength increases
(D) Speed decreases, wavelength increases

2. When a light ray travels from a denser medium to a rarer medium, what happens to its speed and angle of refraction?

(A) Speed increases, angle of refraction increases
(B) Speed increases, angle of refraction decreases
(C) Speed decreases, angle of refraction increases
(D) Speed decreases, angle of refraction decreases

3. What is the term for the bending of light when it passes from one medium into another, due to a change in its speed?

(A) Reflection
(B) Dispersion
(C) Diffraction
(D) Refraction

4. Which type of lens converges or focuses light rays to a single point, forming a real or virtual image?

(A) Concave lens
(B) Convex lens
(C) Plano-convex lens
(D) Plano-concave lens

5. A diverging lens is also known as:

(A) Concave lens
(B) Convex lens
(C) Plano-convex lens
(D) Plano-concave lens

6. When a light ray passes through a converging lens, what type of image is typically formed?

(A) Real and inverted
(B) Virtual and upright
(C) Real and upright
(D) Virtual and inverted

7. Which type of lens is thicker at the center than at the edges?

(A) Concave lens
(B) Convex lens
(C) Plano-convex lens
(D) Plano-concave lens

8. Which type of lens is thinner at the center than at the edges?

(A) Concave lens
(B) Convex lens
(C) Plano-convex lens
(D) Plano-concave lens

9. When a light ray passes through a diverging lens, what type of image is typically formed?

(A) Real and inverted
(B) Virtual and upright
(C) Real and upright
(D) Virtual and inverted

10. A concave lens has a focal length of -15 cm. If an object is placed 30 cm in front of the lens, calculate the image distance and state whether the image is real or virtual.

(A) Positive image distance, real image
(B) Negative image distance, real image
(C) Positive image distance, virtual image
(D) Negative image distance, virtual image