MCQs

Q511: The entire light is reflected into the same denser medium, which is called total?

• A) External reflection
• B) External refraction
• C) Internal reflection

Q512: A magnifying glass forms an enlarged ______?

• A) Real and upright image
• B) Virtual and upright image
• C) Real and inverted

Q513: The human eye acts like a ______?

• A) Camera
• B) Telescope
• C) Projector

Q514: To view dim stars, we use ______?

• A) Compound microscope
• B) Endoscope
• C) Telescope

Q515: When the angle of refraction is 90° and the refractive index for water is 1. 33, the critical angle is ______?

• A) 48.8°
• B) 50.0°
• C) 49.1°

Q516: In a compound microscope, as compared to an objective, the eyepiece lens has a focal length _____?

• A) Zero
• B) Small
• C) Negative

Q517: When a light ray enters from a denser medium to a rare medium, it bends ______?

• A) Perpendicular to normal
• B) Parallel to normal
• C) Away from normal

Q518: In a concave mirror, the image size depends upon _____?

• A) Size of the object
• B) Area covered by the object
• C) Position of the object

Q519: The optical phenomenon in which the splitting of white light into seven distinct colors occur is called?

• A) Refraction
• B) Dispersion
• C) Reflection

Q520: The color that is least deviated by a prism ______?

• A) Violet ray
• B) Red ray
• C) Green ray