NEET · Physics · True or False — Optics

Exercise and reference answers

Questions

1. Statement is true

   No

   Statement

   Light travels faster in water than in air.

2. Statement is true

   Yes

   Statement

   Total internal reflection requires light to travel from denser to rarer medium.

3. Statement is true

   No

   Statement

   A convex lens always forms a real image.

4. Statement is true

   Yes

   Statement

   Snell's law relates the sines of incidence and refraction angles.

5. Statement is true

   Yes

   Statement

   The focal length of a concave mirror is taken as negative by convention.

6. Statement is true

   No

   Statement

   Power of a lens is measured in metres.

Instructions

TRUE / FALSE on ray optics rules.