Discussion
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- Question
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
- Correct Answer
- the two surfaces are pressed harder
- 1. In _____________ motion of a body its velocity varies with time.
Options- A. uniform
- B. linear
- C. equilibrium
- D. non-uniform Discuss
- 2. Find the current (in A) when a charge of 500 Coulomb flows in 25 seconds.
Options- A. 12500
- B. 20
- C. 40
- D. 6250 Discuss
- 3. The laws which govern the motion of planets are called ___________________.
Options- A. Newton's Laws
- B. Kepler's Laws
- C. Avogadro's laws
- D. De Morgan's Laws Discuss
- 4. The angle between the __________and the incident ray is called the angle of incidence.
Options- A. surface
- B. normal
- C. tangent
- D. reflected ray Discuss
- 5. Supercooling is cooling of liquid _____.
Options- A. below melting point
- B. below freezing point
- C. at melting point
- D. above melting point Discuss
- 6. 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
- 7. Instrument for measuring blueness of the sky or ocean is called ___________.
Options- A. Bathymeter
- B. Ceraunograph
- C. Cyanometer
- D. Barometer Discuss
- 8. 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
- 9. 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
- 10. 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
Physics problems
Search Results
Correct Answer: non-uniform
Correct Answer: 20
Correct Answer: Kepler's Laws
Correct Answer: normal
Correct Answer: below freezing point
Correct Answer: ductility
Correct Answer: Cyanometer
Correct Answer: -0.6
Correct Answer: 11.25 diopters
Correct Answer: Virtual image
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