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Engineering Physics Practice Test 73

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## Spherical Mirror Questions and Answers : MCQ 73

MCQ 361:

If mirror coating lies inside of the spherical surface, then it is

1. plane mirrors
2. convex mirrors
3. concave mirrors
4. virtual mirrors
MCQ 362:

Period of revolution in uniform circular motion is equals to

1. 2πr
2. 2πr/v
3. 2π/v
4. 2π/r.v
MCQ 363:

Speed of water at 20°C is

1. 331 m/s
2. 965 m/s
3. 1522 m/s
4. 1482 m/s
MCQ 364:

If body A and B are each in thermal equilibrium with a third body T, then

1. only A is in thermal condition
2. only B is in thermal condition
3. A and B are in thermal equilibrium with each other
4. none of above
MCQ 365:

If m is the mass of body and v is its velocity, then linear momentum 'p' is equals to

1. mv
2. m+v
3. m/v
4. 1/2mv