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Physics Quiz 9 (25 MCQs)

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1. Who was the first Indian woman in space?
2. The critical angle in total internal reflection occurs when incident light on a surface is
3. A cart is pushed and undergoes certain acceleration. Consider how the acceleration would compare if it were pushed with twice the net force while it's mass increased by four. Then its acceleration would be
4. What will happen to torque if the lever arm is doubled and the force is quadrupled?
5. Which of these values is greatest?
6. Which of the given angle will have the farthest range when a projectile is launched?
7. Which of the following is not an action at a distance force?
8. A ball with a mass of 500g is lifted onto a shelf which is 1.5 m above the ground. Calculate the gravitational potential energy gained by the ball (g = 9.8 m/s2 )
9. Sound travels with a different speed in media. In what order does the velocity of sound increase in these media?
10. What is the unit of kinetic energy
11. In a bulb there are _____ terminals
12. Intensity of sound at a point is _____ its distance from the source.
13. A(n) _____ is a push or pull.
14. What is the correct formula to find moment of force?
15. Which among the following quantities is scalar?
16. The rotational effect of a force on a body about an axis of rotation is described in terms of
17. A point charge Q is far from all other charges. At a distance of 2 m from Q, the electric field is 20 N/C. What is the force a charge of 5 Coulombs feels?
18. A skydiver reaches terminal velocity. Then he opens his parachute. What happens to the skydiver as the parachute opens?
19. In a capacitor, the opposite plates take on _____ charges.
20. Which one of the physical quantities is not a derived quantity?
21. What happens to the torque as the angle between the lever arm and the force applied decreases from 90 to zero?
22. Which of following in not a property of cathode ray
23. A dog has three puppies. Spot weighs 12 ounces. Rascal weighs 9.5 ounces. Socks weighs 10.2 ounces. What is the total weight of the litter expressed to the correct number of significant figures?
24. The statement "Precision is independent of accuracy. You can be very precise but inaccurate. You can also be accurate but imprecise." Is
25. What happened during the eclipse experiment?
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