Reflection of Light MCQ (Multiple Choice Questions) PDF - 10

MCQ 46: The reflection depends on the object's

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

MCQ 47: (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

MCQ 48: The most common scale used is

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

MCQ 49: 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

MCQ 50: The reflection in mirrors and polished metals are the examples of

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