Reflection of Light MCQs with Answers PDF Download – Test 10

The reflection depends on the object's

1. area
2. size
3. smoothness
4. material

(Mass × specific heat capacity × temperature change) is equal to

1. kinetic energy transferred
2. potential energy transferred
3. thermal energy transferred
4. heat capacity transferred

The most common scale used is

1. kelvin scale
2. Celsius scale
3. Fahrenheit scale
4. none of the above

A rectangular block with base area A of 30 cm² and height h of 0.06 m is submerged in water of density 1000 kg m^-3. What is the pressure due to the water acting on the top surface of the block?

1. 5 × 10² Pa
2. 3 × 10² Pa
3. 6 × 10² Pa
4. 10 × 10² Pa

The reflection in mirrors and polished metals are the examples of

1. irregular reflection
2. regular refraction
3. irregular refraction
4. regular reflection