ENTRANCE TEST – 2017 Multiple Questions and Answers.




6.Angular displacement of a point moving in a circle 10cm when displacement of projection of this point a long vertical diameter of circle is 8.66cm will be:
A. 30°
B. 60°
C. 45°
D. 75°

7.A wave travelling with speed of 130m/shaving wave length of 5m.What is its frequency:
A. 650Hz
B. 20Hz
C. 26Hz
D. 3.8x10²Hz

8.A metallic wire of length 2m hooked between two points has tension10N.If mass per unit length is 0.004kg/m,their fundamental frequency emitted by wire on vibration is:
A. 48Hz
B. 24Hz
C. 12.5Hz
D. 6.25Hz

9.The wave length of light which produces second order spectrum on diffractiong rating on which 5000 lines/cm are ruled at an angle of 30° will be:
A. 6x10–7m
B. 4x10–6m
C. 5x10–7m
D. 3x10–6m

10.Estimate pressure of air molecules at 273K,if mean square speed is 500m²/s²and density of air is 6kg/m³:
A. 1x10³Pa
B. 2.5x10²Pa
C. 1x10²Pa
D. 2.7x10³Pa

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