Physics Practice MCQ Page 32
Multiple Choice questions for Physics in the sets of 10 each on one page with questions and answers. All sets are useful in the preparation of subject tests for employment or admission.
Question: 3564 If three amplifier stages each with a gain of 30 are cascaded, what is the over all gain
- 30
- 90
- 270
- 27000
Question: 3566 An oscillator is a=basically an amplifier with loop gain
- less than unity
- more than unity
- zero
- none of the above
Question: 3569 Due to surface tension, saturated vapour pressure in equilibrium with its liquid is
- greater over a convex as well as a concave surface than over a flat surface
- less over a convex as well as a concave surface than over a flat surface
- greater over a convex surface and less over a concave surface than over a flat surface
- less over a convex surface and greater over a concave surface than over a flat surface
Question: 3571 Even harmonics are absent in the case of
- sonometer
- vibrating rods
- resonance
- none of the above
Question: 3572 In a doubly refraction crystal, optic axis is in a direction along which
- a plane polarised beam does not suffer deviation
- any beam of light does not suffer any deviation
- double refraction does not take place
- ordinary and extra ordinary rays undergo maximum deviations
Question: 3574 In a doubly refraction crystal, optic axis is in a direction along which
- a plane polarised beam does not suffer deviation
- any beam of light does not suffer any deviation
- double refraction does not take place
- ordinary and extra ordinary rays undergo maximum deviations
Question: 3575 Light from the cloudless sky is
- fully polarised
- semi-polarised
- unpolarised
- can not be said
Question: 3576 A single transistor produces
- half wave rectification
- full wave rectification
- both half wave as well as full wave rectification
- no rectification at all
Question: 3578 The radiation emitted from a hot surface depends on its temperature. This property can be made use of in defining a temperature scale
- this scale is always different from the Kelvin scale
- this is identical with the Kelvin scale if the surface is black
- this is identical with the Kelvin scale
- this is the same as Kelvin scale at high temperature
Question: 3579 In a semiconductor diode, the potential offers opposition to only
- majority carriers in both regions
- minority carriers in both regions
- free electrons in the N-region
- holes in the P-regions
Question: 3581 The amplifier in which the grid bias is appreciably greater than the cut off value is
- class A amplifier
- class B amplifier
- class AB amplifier
- class C amplifier
Question: 3699 An automobile that is to win a trailer is accelerating on a level road. the force that the automobile exerts on the trailer is
- equal tot he force the trailer on the road
- greater than force the trailer exerts on the automobile
- equal to the force the trailer exerts on the automobile
- equal to the force the road exerts on the trailer
Answers to the questions of Physics on this page
Following list gives the correct choice for the answer of the Physics mcqs.
3564 . D
3566 . B
3569 . C
3571 . C
3572 . C
3574 . C
3575 . B
3576 . A
3578 . B
3579 . A
3581 . D
3699 . B
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