Indian Air Force- Physics

MODEL QUESTIONS 

MODEL QUESTIONS OF PHYSICS FOR 

GROUP ‘X’ TECHNICAL TRADES 

Q1. Which of the following is the fundamental quantity ? 

(A) Volume 

(B) Velocity 

(C) Time 

(D) Force 

 Ans : C 

Q2. A ball is projected with a velocity of 15 m/s making an angle of 300 with the horizontal. Calculate the time of flight of the ball ( Give g= 10m/s2 ) 

(A) 2.1 Second

(B) 3.1 Second

(C) 1.5 Second

(D) 3.5 Second

 Ans: C

 Q3. The dimension formulas for impulse is same as the dimensional formula for 

(A) Momentum

 (B) Force 

(C) Rate of change of momentum 

(D) Torque 

Ans : A 

 Q4. For a common base amplifier, V is the collector base battery, Ic the current in the collector circuit, Rl the resistance connected is collector circuit and Vcb the voltage across collector & base, then

(A) Vcb =Vcc + IcRL

 (B) Vcb = Vcc -IcRL 

(C) Vcc = Vcb - IcRL 

(D) None of these

 Ans : A 

Q5. The SI unit of Universal Gas constant (R) is : 

(A) Watt k-1mol-1

 (B) NK-1mol-1

 (C) JK-1mol-1 

(D) erg K-1 mol -1 

Ans : C