Total Internal Reflection MCQ with Answers PDF Download – Test 80

MCQ 396: As compare to copper wires, the loss of signal in optical fiber is:

1. more
2. zero
3. equal
4. less

MCQ 397: If a rectangular brick 20 cm by 10 cm by 5 cm has a density of 2 g cm^-3 and the strength of gravitational field os 10 N kg^-1,what is the minimum pressure exerted by the block when it is placed on one face?

1. 4 × 10³ Pa
2. 1 × 10³ Pa
3. 2 × 10³ Pa
4. 5 × 10³ Pa

MCQ 398: The reluctance of the object to change its state of rest or motion is known as:

1. displacement
2. stress
3. acceleration
4. inertia

MCQ 399: The surfaces having irregular reflection, the normal at all the points of incidence are:

1. perpendicular
2. parallel
3. not parallel
4. none of the above

MCQ 400: To increase the stability of an object, the area of its base should be:

1. narrow
2. deep
3. unbalanced
4. wide