Physics Practice Question and Answer
8 Q: For an object experiencing weightlessness _____
1465 063c7a79dbdbddb32fd9ccd6a
63c7a79dbdbddb32fd9ccd6a- 1its weight force is non-zerofalse
- 2it has inertiatrue
- 3it experiences a value of acceleration greater than the acceleration due to gravityfalse
- 4it experiences a value of acceleration lesser than the acceleration due to gravityfalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 2. "it has inertia"
Q: The capacity of parallel plate condenser is dependent on the
1463 063c8e9831c47ef334be0ee88
63c8e9831c47ef334be0ee88- 1The separation between the platesfalse
- 2The metal used for the constructiontrue
- 3The thickness of the platefalse
- 4The potential applied across the platesfalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 2. "The metal used for the construction"
Explanation :
Therefore, the capacity of a parallel plate capacitor directly depends on the relative permittivity of dielectric material, the permittivity of space, the area of plates, and is inversely dependent on the separation between the plates.
Q: Which is the largest source of energy on earth?
1450 060b4b317f2c446136b8b6a5c
60b4b317f2c446136b8b6a5c- 1Suntrue
- 2woodfalse
- 3Moonfalse
- 4Coalfalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 1. "Sun"
Q: The power of a lens is -2.0 D. Here ‘D’ stands for ________.
1442 060ffbd12d984302df240ac39
60ffbd12d984302df240ac39- 1distancefalse
- 2dilationfalse
- 3dioptretrue
- 4degreefalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 3. "dioptre"
Q: What is Newton's first law of motion called?
1435 1639949e2ffa5c734fedffc07
639949e2ffa5c734fedffc07- 1Law of conservation of momentumfalse
- 2Law of mobilityfalse
- 3Law of inertiatrue
- 4None of thesefalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 3. "Law of inertia"
Q: Planetary scientists call the thin gaseous envelope around the Moon as the _______.
1431 062bece2d1d322d793f53ca68
62bece2d1d322d793f53ca68- 1lunar stratospherefalse
- 2lunar exospheretrue
- 3lunar endospherefalse
- 4lunar thermospherefalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 2. "lunar exosphere "
Q: What does an electric dipole experience when it is kept in the non-uniform electric field?
1428 063c8e9d71c47ef334be0efc0
63c8e9d71c47ef334be0efc0- 1Only a forcefalse
- 2Only torquefalse
- 3Force and torque bothtrue
- 4Neither force nor torquefalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 3. "Force and torque both"
Explanation :
An electric dipole always experiences a torque when placed in uniform as well as non-uniform electric field. But in non-uniform electric field, dipole will also experience net force of attraction. So the electric dipole in non-uniform electric field experiences both torque and force.
Q: Which of the following is correct about uniform acceleration?
1422 064a2adc98dcbe3218b096682
64a2adc98dcbe3218b096682- 1An object moving on friction-less surface can gain uniform acceleration.false
- 2An object under free fall is an example of uniform acceleration.true
- 3An object moving with constant speed is an example of uniform acceleration.false
- 4Motion of a spring is an example of uniform acceleration.false
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 2. "An object under free fall is an example of uniform acceleration."
Explanation :
1. The change in velocity of an object at equal time intervals is called uniform acceleration.
2. A freely falling object is an example of uniform acceleration.