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- Question
The increasing order of the refractive index of certain materials is (left to right) .......
Options- A. Rocksalt, Benzene, Kerosene, Ice
- B. Rock Salt, Ice, Benzene, Kerosene
- C. Ice, Kerosene, Benzene, Rock Salt
- D. Kerosene, Ice, Benzene, Rock Salt
- Correct Answer
- Ice, Kerosene, Benzene, Rock Salt
- 1. Rate of change of momentum is
Options- A. Area
- B. Pressure
- C. Force
- D. Velocity Discuss
- 2. For every action, there is an equal and opposite reaction, is Newton's
Options- A. First law
- B. Second law
- C. Third law
- D. Fourth law Discuss
- 3. Momentum is measured as the product of :
Options- A. Mass and inertia
- B. Mass and force
- C. Mass and velocity
- D. Mass and acceleration Discuss
- 4. An object at rest will remain at rest and an object in motion will remain in motion until and unless it is acted upon by an external force. This is Newton's
Options- A. First law
- B. Second law
- C. Third law
- D. Fourth law Discuss
- 5. Rate of change of displacement is known as ............
Options- A. Acceleration
- B. Velocity
- C. Speed
- D. Distance Discuss
- 6. Weight of a body is maximum at the:
Options- A. Equator
- B. Pole
- C. Subtropics
- D. Tropics Discuss
- 7. Which of the following device is best suited for measuring the temperature inside metallurgical furnaces?
Options- A. Pyrometer
- B. Thermocouple
- C. Thermometer
- D. Thermistor Discuss
- 8. When body is accelerated--
Options- A. Its velocity never changes.
- B. Its speed will always change.
- C. Its direction always changes.
- D. Its speed may or may not change. Discuss
- 9. The spring constant of a spring depends on its
Options- A. length only
- B. material only
- C. length and its diameter
- D. thickness, its diameter and its material Discuss
- 10. Which of the following is not a vector quantity?
Options- A. Acceleration
- B. Electric current
- C. Force
- D. Velocity Discuss
Physics problems
Search Results
Correct Answer: Force
Correct Answer: Third law
Correct Answer: Mass and velocity
Correct Answer: First law
Correct Answer: Velocity
Correct Answer: Pole
Correct Answer: Pyrometer
Correct Answer: Its speed may or may not change.
Explanation:
Uniform circular motion, that is constant speed along a circular path, is an example of a body experiencing acceleration resulting in velocity of a constant magnitude but the change of direction
Correct Answer: thickness, its diameter and its material
Explanation:
In dealing with a coil spring the spring constant will depend on the stiffness of the spring material, the thicknessof the wire from which the spring is wound and, diameterof the turns of the coil, the number of turns per unit length and the overall length of the spring.
Correct Answer: Electric current
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