Discussion
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- Question
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
- Correct Answer
- Virtual image
- 1. 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
- 2. 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
- 3. Instrument for measuring blueness of the sky or ocean is called ___________.
Options- A. Bathymeter
- B. Ceraunograph
- C. Cyanometer
- D. Barometer Discuss
- 4. The property of metal by which it can be drawn into wires is called _____________.
Options- A. maleability
- B. viscosity
- C. ductility
- D. tensile strength Discuss
- 5. The force of friction between two surfaces will increase if:
Options- A. a layer of lubricant is kept between the two surfaces
- B. the two surfaces are pressed harder
- C. air gap is created between the two surfaces
- D. irregularities on both the surfaces are removed Discuss
- 6. 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
- 7. 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
- 8. 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 Discuss
- 9. 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
- 10. 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
Physics problems
Search Results
Correct Answer: 11.25 diopters
Correct Answer: -0.6
Correct Answer: Cyanometer
Correct Answer: ductility
Correct Answer: the two surfaces are pressed harder
Correct Answer: Non-contact force
Correct Answer: 2 x average velocity - initial velocity
Correct Answer: 0.5
Correct Answer: velocity
Correct Answer: Momentum
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