Discussion
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- Question
Find the acceleration (in m/s2) of a body which accelerates from 25 m/s to 30 m/s in 10 seconds
Options- A. 5.5
- B. 1
- C. 11
- D. 0.5
- Correct Answer
- 0.5
- 1. For a body moving with uniform acceleration its final velocity equals _________________.
Options- A. average velocity - initial velocity
- B. 2 x average velocity - initial velocity
- C. 2 x average velocity + initial velocity
- D. average velocity + initial velocity Discuss
- 2. The force exerted by a magnet is an example of _________.
Options- A. Non-contact force
- B. Muscular force
- C. Contact force
- D. Electrostatic force Discuss
- 3. An image formed by a plane mirror, that cannot be obtained on a screen is called _______.
Options- A. Virtual image
- B. Real image
- C. Inverted image
- D. Erect image Discuss
- 4. Find the power of a convex lens if the image formed is at a distance of 16 cm from the lens when the object is placed on the other side of the lens at 20 cm from the optical centre?
Options- A. -3.75 diopters
- B. -11.25 diopters
- C. 3.75 diopters
- D. 11.25 diopters Discuss
- 5. If price of an article decreases from Rs 240 to Rs 220, when quantity demanded increases from 200 units to 210 units. Find point elasticity of demand?
Options- A. 0.6
- B. -1.8
- C. -0.6
- D. 1.8 Discuss
- 6. During uniform motion of an object along a straight line, its ___________ remains constant with time
Options- A. acceleration
- B. deceleration
- C. force
- D. velocity Discuss
- 7. If a force acts upon two objects at rest, and having different masses for the same amount of time, then which one of the following will be the same for both the objects?
Options- A. Acceleration
- B. Kinetic Energy
- C. Velocity
- D. Momentum Discuss
- 8. Formula for distance is
Options- A. speed x time
- B. time / speed
- C. speed x acceleration
- D. velocity / speed Discuss
- 9. Why metals conduct electricity?
Options- A. Because of low melting point
- B. Because of high tensile strength
- C. Because of free electrons
- D. Because of high atomic density Discuss
- 10. Which of the following has the lowest frequency?
Options- A. Visible light
- B. Gamma rays
- C. X-rays
- D. Ultra violet rays Discuss
Physics problems
Search Results
Correct Answer: 2 x average velocity - initial velocity
Correct Answer: Non-contact force
Correct Answer: Virtual image
Correct Answer: 11.25 diopters
Correct Answer: -0.6
Correct Answer: velocity
Correct Answer: Momentum
Correct Answer: speed x time
Correct Answer: Because of free electrons
Correct Answer: Visible light
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