MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 488 Mcqs, each offering curated multiple-choice questions to sharpen your Uncategorized topics knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Only force acting on a bouncing ball is |
| A. | gravity |
| B. | weight of ball |
| C. | friction |
| D. | a and b both |
| Answer» E. | |
| 2. |
Accelerometer detects the |
| A. | small acceleration |
| B. | large acceleration |
| C. | small deceleration |
| D. | large acceleration and deceleration |
| Answer» E. | |
| 3. |
A stone is thrown upwards with initial velocity of $$$20ms^{-1}$$$, the height that stone will reach would be |
| A. | 20 m |
| B. | 30 m |
| C. | 40 m |
| D. | 50 m |
| Answer» B. 30 m | |
| 4. |
Projectile will attain its maximum range, if it is fired at an angle of |
| A. | 30 |
| B. | 47 |
| C. | 90 |
| D. | 45 |
| Answer» E. | |
| 5. |
Gradient of line of velocity-time graph is tells us the |
| A. | velocity |
| B. | acceleration |
| C. | distance |
| D. | time |
| Answer» C. distance | |
| 6. |
Horizontal component of a bouncing ball is |
| A. | affected by gravity |
| B. | unaffected by gravity |
| C. | affected by weight |
| D. | affected by contact force |
| Answer» C. affected by weight | |
| 7. |
Equation of motion can be used for |
| A. | straight line motion only |
| B. | curved motion only |
| C. | motion along the circular path |
| D. | all types of motion |
| Answer» B. curved motion only | |
| 8. |
Acceleration of free fall depends on the |
| A. | surface |
| B. | weight of object |
| C. | distance from center of Earth |
| D. | size of object |
| Answer» C. distance from center of Earth | |
| 9. |
When ball having a projectile motion is rising up, it |
| A. | decelerates |
| B. | accelerates |
| C. | rises up with constant acceleration |
| D. | acceleration becomes zero |
| Answer» B. accelerates | |
| 10. |
If initial velocity of an object is zero, then distance covered by it in time t and acceleration of $$$9.8ms^{-2}$$$ would be |
| A. | $$$2.9 :t^{2}$$$ |
| B. | $$$3 :t^{2}$$$ |
| C. | $$$4 :t^{2}$$$ |
| D. | $$$4.9 :t^{2}$$$ |
| Answer» E. | |
| 11. |
As the ball falls towards the ground, its velocity |
| A. | increases |
| B. | decreases |
| C. | remains constant |
| D. | becomes zero |
| Answer» B. decreases | |
| 12. |
An object whose velocity is changing is said to be in a state of |
| A. | acceleration |
| B. | rest |
| C. | equilibrium |
| D. | Brownian motion |
| Answer» B. rest | |
| 13. |
Acceleration of train when it is moving steadily from $$$4.0 :ms^{-1}$$$ to $$$20 :ms^{-1}$$$ in 100s is |
| A. | $$$1 :ms^{-2}$$$ |
| B. | $$$2 :ms^{-2}$$$ |
| C. | $$$0.16 :ms^{-2}$$$ |
| D. | $$$3 :ms^{-2}$$$ |
| Answer» D. $$$3 :ms^{-2}$$$ | |
| 14. |
If we get a straight line with positive slope then its acceleration is |
| A. | increasing |
| B. | decreasing |
| C. | zero |
| D. | constant |
| Answer» E. | |
| 15. |
Gradient of velocity-time graph tells us about object's |
| A. | velocity |
| B. | displacement |
| C. | distance |
| D. | acceleration |
| Answer» E. | |
| 16. |
If a spinster staring from rest has acceleration of $$$5ms^{-2}$$$ during 1st 2.0s of race then her velocity after 2 s is |
| A. | $$$20ms^{-1}$$$ |
| B. | $$$10ms^{-1}$$$ |
| C. | $$$15ms^{-1}$$$ |
| D. | $$$5ms^{-1}$$$ |
| Answer» C. $$$15ms^{-1}$$$ | |
| 17. |
If a car starting from rest reaches a velocity of $$$18ms^{-1}$$$ after 6.0 s then its acceleration is |
| A. | $$$1ms^{-2}$$$ |
| B. | $$$2ms^{-2}$$$ |
| C. | $$$3ms^{-2}$$$ |
| D. | $$$4ms^{-2}$$$ |
| Answer» D. $$$4ms^{-2}$$$ | |
| 18. |
Horizontal distance traveled by a ball if it's thrown with initial velocity of $$$20ms^{-1}$$$ at an angle of 30 is |
| A. | 24 m |
| B. | 56 m |
| C. | 35.3 m |
| D. | 36.3 m |
| Answer» D. 36.3 m | |
| 19. |
A train travelling at $$$20m s^{-1}$$$ accelerates at $$$ 0.5ms^{-2}$$$ for 30 s, the distance travelled by train is |
| A. | 825 m |
| B. | 700 m |
| C. | 650 m |
| D. | 600 m |
| Answer» B. 700 m | |
| 20. |
If a secondary coil has 40 turns, and, a primary coil with 20 turns is charged with 50 V of potential difference, then the potential difference in the secondary coil would be |
| A. | 50 V in secondary coil |
| B. | 25 V in secondary coil |
| C. | 60 V in secondary coil |
| D. | 100 V in secondary coil |
| Answer» E. | |
| 21. |
Equation which measures alternating voltage is |
| A. | Vsin |
| B. | sin t |
| C. | Vo sin t |
| D. | V=IR |
| Answer» D. V=IR | |
| 22. |
Consequence of motor effect is |
| A. | electromagnetic induction |
| B. | current |
| C. | voltage |
| D. | e.m.f |
| Answer» B. current | |
| 23. |
Mean drift velocity of electron in a copper wire having cross-sectional area 5.0 10 -6 m2 carrying current of 1 A and having number density 8.5 10 28 m3 is {{}} |
| A. | 0.015 mm s-1 |
| B. | 0.1 mm s-1 |
| C. | 0.5 mm s-1 |
| D. | 0.25 mm s-1 |
| Answer» B. 0.1 mm s-1 | |
| 24. |
Magnitude of charge is known as |
| A. | charge count |
| B. | elementary charge |
| C. | elementary count |
| D. | charge number |
| Answer» C. elementary count | |
| 25. |
1 is equal to |
| A. | 1 V A-2 |
| B. | 1 V A-1 |
| C. | 1 V-1 A |
| D. | 2 V A-1 |
| Answer» C. 1 V-1 A | |
| 26. |
Current in a 60 W light bulb when it is connected to a 230 V power supply is |
| A. | 0.26 A |
| B. | 1.5 A |
| C. | 2.6 A |
| D. | 3.9 A |
| Answer» B. 1.5 A | |
| 27. |
Grid cables are 15 km long with a resistance of 0.20 km-1, powers wasted as heat in these cables are |
| A. | 50 kW |
| B. | 60 kW |
| C. | 20 kW |
| D. | 30 kW |
| Answer» E. | |
| 28. |
Actual velocity of electrons between collisions is |
| A. | 1030 m s-1 |
| B. | 1020 m s-1 |
| C. | 102 m s-1 |
| D. | 105 m s-1 |
| Answer» E. | |
| 29. |
If direction of current is from positive to negative, then it is called |
| A. | electronic current |
| B. | conventional current only |
| C. | positronic current |
| D. | protonic current |
| Answer» C. positronic current | |
| 30. |
Phenomena in which a charged body attract uncharged body is called |
| A. | electrostatic induction |
| B. | electric current |
| C. | charge movement |
| D. | magnetic induction |
| Answer» B. electric current | |
| 31. |
Particles involved in the movement within material are |
| A. | protons |
| B. | electrons |
| C. | neutrons |
| D. | positrons |
| Answer» C. neutrons | |
| 32. |
Fields that act on objects with masses are |
| A. | electric fields |
| B. | magnetic fields |
| C. | force fields |
| D. | gravitational fields |
| Answer» E. | |
| 33. |
E.M.F can be induced in a circuit by |
| A. | changing magnetic flux density |
| B. | changing area of circuit |
| C. | changing the angle |
| D. | all of above |
| Answer» E. | |
| 34. |
Electric field strength on a dust particle having charge equal to 8 10 - 19 when plates are separated by distance of 2 cm and have a potential difference of 5 kV is {{}} |
| A. | 2.0 10 -13 N |
| B. | 3 N |
| C. | 5 N |
| D. | 20 N |
| Answer» B. 3 N | |
| 35. |
When an electron is moving horizontally between oppositely charged plates, it will move in the |
| A. | straight line |
| B. | fall directly downwards |
| C. | move towards positive plates |
| D. | curved path |
| Answer» E. | |
| 36. |
Electric field strength can be defined as |
| A. | E =Q F |
| B. | E = W F |
| C. | E =F Q |
| D. | E =P Q |
| Answer» D. E =P Q | |
| 37. |
When one material is rubbed against the other, then it becomes electrically |
| A. | neutral |
| B. | charged |
| C. | positively charged |
| D. | negatively charged |
| Answer» C. positively charged | |
| 38. |
A straight wire of length 0.20 m moves at a steady speed of {{}} 3.0 m s-1 at right angles to the magnetic field of flux density 0.10 T. The e.m.f induced across ends of wire is |
| A. | 0.5 V |
| B. | 0.06 V |
| C. | 0.05 V |
| D. | 0.04 V |
| Answer» C. 0.05 V | |
| 39. |
All objects are attracted towards |
| A. | center of Earth |
| B. | sun |
| C. | mars |
| D. | moon |
| Answer» B. sun | |
| 40. |
Surface area of a typical person is about |
| A. | 1 m2 |
| B. | 2 m2 |
| C. | 3 m2 |
| D. | 4 m2 |
| Answer» C. 3 m2 | |
| 41. |
Number of moles in 1.6 kg of oxygen is |
| A. | 30 mol |
| B. | 50 mol |
| C. | 40 mol |
| D. | 60 mol |
| Answer» C. 40 mol | |
| 42. |
Output current from an LED is |
| A. | 20 mA |
| B. | 30 mA |
| C. | 40 mA |
| D. | 50 mA |
| Answer» B. 30 mA | |
| 43. |
Actual op-amp may have an open loop gain of{{}} |
| A. | 102 |
| B. | 105 |
| C. | 103 |
| D. | 104 |
| Answer» C. 103 | |
| 44. |
Combined effect of several forces is known as |
| A. | net force |
| B. | resultant force |
| C. | normal force |
| D. | weight |
| Answer» C. normal force | |
| 45. |
Coil of relay is connected to the |
| A. | input of op-amp |
| B. | output of op-amp |
| C. | midpoint of op-amp |
| D. | anywhere in between input and ouput of op-amp |
| Answer» C. midpoint of op-amp | |
| 46. |
Pair of forces that cause steering wheel of a car to rotate is called |
| A. | couple |
| B. | friction |
| C. | normal force |
| D. | weight |
| Answer» B. friction | |
| 47. |
If the principle of moments for any object holds, then object is in state of |
| A. | inertia |
| B. | equilibrium |
| C. | suspension |
| D. | motion |
| Answer» C. suspension | |
| 48. |
Two perpendicular components are |
| A. | independent of each other |
| B. | dependent on each other |
| C. | anti parallel to each other |
| D. | parallel to each other |
| Answer» B. dependent on each other | |
| 49. |
Moment of force depends upon |
| A. | magnitude of force |
| B. | perpendicular distance of force from pivot |
| C. | both A and B |
| D. | axis of rotation |
| Answer» D. axis of rotation | |
| 50. |
If weight of a falling tennis ball is 1.0 N and drag force acting on it is 0.2 N then resultant force is |
| A. | 0.8 N |
| B. | 0.5 N |
| C. | 1 N |
| D. | 2 N |
| Answer» B. 0.5 N | |