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Learn AIR FORCE MCQs with answers [Page 20 of Department 13]

V

Vikash Gupta • 24.35K Points
Instructor III

195) The energy that travel through a telephone line is

(A) Sound energy
(B) Radio energy
(C) Electrical energy
(D) Mechanical energy
Correct Answer - Option (C)

No Explanation found. Add Explanation and get +2 points.

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V

Vikash Gupta • 24.35K Points
Instructor III

196) An object placed at 60cm in front of a concave mirror makes an image 30 cm in front of the mirror, then what is the distance of the focus of the mirror.

(A) 10cm
(B) 5cm
(C) 20cm towards the mirror
(D) 20cm behind the mirror
Correct Answer - Option (C)

No Explanation found. Add Explanation and get +2 points.

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V

Vikash Gupta • 24.35K Points
Instructor III

197) A vehicle stops in 20 sec after applying brakes, if the constant retardation due to the brakes is 1.5 m/sec², then what was the initial velocity of the vehicle.

(A) 30m/sec
(B) 3m/sec
(C) 15m/sec
(D) 40m/sec
Correct Answer - Option (A)

No Explanation found. Add Explanation and get +2 points.

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V

Vikash Gupta • 24.35K Points
Instructor III

198) The ratio of Re flexion and Distortion in called-

(A) coefficient of restitution
(B) coefficient of elasticity
(C) coefficient of elasticity and coefficient of restitution both
(D) None
Correct Answer - Option (B)

No Explanation found. Add Explanation and get +2 points.

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V

Vikash Gupta • 24.35K Points
Instructor III

199) The force of gravitation between two bodies not depend on 

(A) Their separation
(B) The sum of their masses
(C) The product of their masses
(D) The gravitation constant
Correct Answer - Option (C)

No Explanation found. Add Explanation and get +2 points.

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V

Vikash Gupta • 24.35K Points
Instructor III

200) What is the name of the sound wave with less then 20Hz frequency.

(A) inaudible
(B) audible
(C) ultra sonic
(D) Ultra violet
Correct Answer - Option (A)

No Explanation found. Add Explanation and get +2 points.

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