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- Question
A body of mass 5 kg accelerates from 12 m/s to 20 m/s in 4 seconds due to the application of a force on it. Calculate the magnitude of this force (in N).
Options- A. 40
- B. 10
- C. 20
- D. 80
- Correct Answer
- 10
- 1. What is the unit of the physical quantity "Inductance"?
Options- A. weber
- B. farad
- C. henry
- D. tesla Discuss
- 2. Farad is unit of ___________.
Options- A. Capacitance
- B. Reactance
- C. Electric charge
- D. Electric conductance Discuss
- 3. If demand curve for alphonso mangoes is D = 25000 70P and supply curve is S = 10000 + 80P, find the equilibrium quantity?
Options- A. 18,000 units
- B. 2,000 units
- C. 1,800 units
- D. 200 units Discuss
- 4. Air moves from the region where the air _____________________________.
Options- A. humidity is high to the region where the humidity is low
- B. pressure is low to the region where the pressure is high
- C. pressure is high to the region where the pressure is low
- D. humidity is low to the region where the humidity is high Discuss
- 5. Find the resistance (in mega ?) of a wire of length 20m, cross sectional area 1 cm2 and made of a material of resistivity 200 ?m.
Options- A. 40
- B. 4000
- C. 80
- D. 2000 Discuss
- 6. According to the Second Law of Motion, for a given force, acceleration is inversely proportional to the ____ of an object.
Options- A. density
- B. volume
- C. force
- D. mass Discuss
- 7. The coil wire in the electric room heater or electric cooking heater is called __________.
Options- A. Circuit
- B. Element
- C. Filament
- D. Cells Discuss
- 8. A bullet of mass 10gm is fired with a velocity of 40 m/s from a gun of mass 8 kg. Find the recoil velocity (in m/s) of the gun.
Options- A. 2
- B. 0.1
- C. 4
- D. 0.05 Discuss
- 9. The motion of a freely falling body is an example of ________________________ motion.
Options- A. uniformly accelerated
- B. non-uniformly accelerated
- C. constant velocity
- D. constant speed Discuss
- 10. Find the power of a convex lens if the image formed is at a distance of 25 cm from the lens when the object is placed on the other side of the lens at 12 cm from the optical centre?
Options- A. -4.33 diopters
- B. 12.33 diopters
- C. -12.33 diopters
- D. 4.33 diopters Discuss
Physics problems
Search Results
Correct Answer: henry
Correct Answer: Capacitance
Correct Answer: 18,000 units
Correct Answer: pressure is high to the region where the pressure is low
Correct Answer: 40
Correct Answer: mass
Correct Answer: Element
Correct Answer: 0.05
Correct Answer: uniformly accelerated
Correct Answer: 12.33 diopters
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