10th Class Physics MCQs: Test Your Understanding of Key Concepts"
"Welcome to our collection of multiple-choice questions (MCQs) designed specifically for 10th class students studying physics. Test your knowledge and understanding of fundamental concepts such as electrical energy, resistance, electric current, SI units, optics, sound, and more. Each question is carefully crafted to assess your grasp of essential topics taught in the 10th-grade physics curriculum. Whether you are preparing for exams or simply want to enhance your understanding, our MCQs offer an interactive way to engage with physics concepts. Explore and challenge yourself with our MCQs today!"
10th Class Physics MCQs
1. What is the unit of electrical energy consumed?
A) Ampere-hour
B) Kilowatt-hour✓
C) Joule
D) Watt
2. What is the unit of resistance?
A) Volt/Ampere
B) Ohm✓
C) Watt
D) Coulomb
3. Is magnetic field associated with a stationary charge?
A) Yes
B) No
C) Sometimes
D) Depends on the material
4. What causes electric current through liquids and gases?
A) Motion of protons
B) Motion of neutrons
C) Motion of positive and negative charges✓
D) Motion of electrons
5. What is the SI unit of current?
A) Watt
B) Volt
C) Ampere✓
D) Ohm
6. What is the SI unit of capacitance?
A) Volt
B) Ampere
C) Farad✓
D) Ohm
7. How is electric field intensity defined?
A) F=qE✓
B) F=ma
C) F=mv
D) F=mr
8. What is a capacitor used for?
A) To store charge✓
B) To create electric fields
C) To measure current
D) To generate voltage
9. What is the SI unit of electric potential?
A) Watt
B) Ampere
C) Farad
D) Volt✓
10. What is the lightest particle in an atom?
A) Neutron
B) Proton
C) Electron✓
D) Photon
11. What branch of physics deals with the study of charge at rest?
A) Electrodynamics
B) Electromagnetism
C) Electrostatics✓
D) Electrophysics
12. Why do metals show good conductivity?
A) Due to the motion of neutrons
B) Due to the absence of free electrons
C) Due to the presence of a large number of free electrons✓
D) Due to the absence of protons
13. What happens between two unlike charges?
A) They attract each other✓
B) They repel each other
C) They create an electric field
D) They cancel each other out
14. What does Coulomb's law describe?
A) The force between two point charges✓
B) The force between two magnets
C) The force between two masses
D) The force between two electrons
15. What is the speed of light in vacuum?
A) 3x10^6 m/s
B) 3x10^7 m/s
C) 3x10^8 m/s✓
D) 3x10^9 m/s
16. What do electromagnetic waves carry?
A) Heat
B) Sound
C) Energy✓
D) Mass
17. According to the quantum theory of light, what are photons?
A) Particles of sound
B) Energy packets✓
C) Atoms
D) Electromagnetic waves
18. What happens when two like charges are brought close together?
A) They attract each other
B) They repel each other✓
C) They create a magnetic field
D) They cancel each other out
19. What phenomenon occurs when small drops of rainwater disperse sunlight into different colors?
A) Refraction
B) Reflection
C) Dispersion✓
D) Diffraction
20. What is the speed of sound in air at normal temperature and pressure (N.T.P)?
A) 336 m/s✓
B) 340 m/s
C) 343 m/s
D) 328 m/s
21. What is the unit of power of lenses?
A) Ampere
B) Joule
C) Watt
D) Diopter✓
22. What is the minimum number of lenses used in a telescope?
A) One
B) Two✓
C) Three
D) Four
23. What is the focal length of a convex lens?
A) Positive✓
B) Negative
C) Zero
D) Variable
24. What is the focal length of a concave lens?
A) Positive
B) Negative✓
C) Zero
D) Variable
25. What type of lens is used for the correction of long-sightedness?
A) Convex lens✓
B) Concave lens
C) Diverging lens
D) Converging lens
26. When the object is at infinity, what type of image is formed by a lens?
A) Virtual, upright, and large
B) Virtual, upright, and small
C) Real, inverted, and large
D) Real, inverted, and small✓
27. What is the unit of intensity level?
A) Ampere
B) Decibel (dB)✓
C) Volt
D) Diopter
28. What is the intensity level of ordinary sensations?
A) 30 dB
B) 50 dB
C) 60 dB✓
D) 80 dB
29. What is the sensation provided by the ear called?
A) Sound✓
B) Noise
C) Vibration
D) Pitch
30. What phenomenon occurs when two waves support each other at some points and cancel each other at other points?
A) Refraction
B) Diffraction
C) Interference✓
D) Reflection
31. What is the speed of sound in air at 0 °C?
A) 320 m/s
B) 332 m/s✓
C) 336 m/s
D) 340 m/s
32. What are beats used to find out?
A) Frequency✓
B) Wavelength
C) Intensity
D) Energy
33. What causes beats to occur?
A) Refraction
B) Diffraction
C) Interference✓
D) Reflection
34. What is the unit of intensity level?
A) Ampere
B) Decibel (dB)✓
C) Volt
D) Diopter
35. What is the intensity level of ordinary sensations?
A) 50 dB
B) 60 dB✓
C) 70 dB
D) 80 dB
36. What is the sensation provided by the ear called?
A) Sound✓
B) Noise
C) Vibration
D) Pitch
37. What is the phenomenon resulting from the superposition of two waves called?
A) Refraction
B) Diffraction
C) Interference✓
D) Reflection
38. What is the speed of sound in air (fluid) related to?
A) Temperature✓
B) Pressure
C) Density
D) V
olume
39. What is the frequency of a second pendulum?
A) 0.1 Hz
B) 0.5 Hz✓
C) 1 Hz
D) 2 Hz
40. What is the time period of a second pendulum?
A) 0.5 seconds
B) 1 second
C) 2 seconds✓
D) 4 seconds
40. What is the time period of a second pendulum?
A) 0.5 seconds
B) 1 second
C) 2 seconds✓
D) 4 seconds
41. What is a hole in P-type semiconductor?
A) A missing electron✓
B) An extra electron
C) A proton
D) A neutron
42. Which of the following is a typical example of a semiconductor?
A) Gold
B) Silver
C) Germanium✓
D) Copper
43. What type of impurity is Arsenic in a semiconductor?
A) Acceptor
B) Donor✓
C) Neutral
D) Insulator
44. What type of impurity is Gallium in a semiconductor?
A) Donor
B) Acceptor✓
C) Neutral
D) Insulator
45. What are the majority carriers in "n" type semiconductor?
A) Holes
B) Electrons✓
C) Protons
D) Neutrons
46. What are the minority carriers in "n" type semiconductor?
A) Electrons
B) Holes✓
C) Protons
D) Neutrons
47. What are the majority carriers in p-type semiconductor?
A) Electrons
B) Holes✓
C) Protons
D) Neutrons
48. What are the minority carriers in p-type semiconductor?
A) Holes
B) Electrons✓
C) Protons
D) Neutrons
49. What property does a semiconductor junction diode have?
A) Two-way conduction
B) No conduction
C) One-way conduction✓
D) Variable conduction
50. What is a device that converts AC into DC called?
A) Transformer
B) Amplifier
C) Rectifier✓
D) Oscillator
51. What is the process of converting AC into DC called?
A) Conversion
B) Amplification
C) Rectification✓
D) Inversion
52. In half-wave rectification, how many diodes are typically used?
A) One
B) Two✓
C) Three
D) Four
53. What can a transistor be used as?
A) Heater
B) Voltage Amplifier✓
C) Battery
D) Insulator
54. What is the range of frequencies for radio waves?
A) 10 kHz to 100 MHz
B) 30 Hz to 300 kHz
C) 30 kHz to 30 MHz✓
D) 100 Hz to 1 GHz
55. What produces a radio wave?
A) Direct current
B) Low-frequency alternating current
C) High-frequency alternating current✓
D) Battery
56. In a p-type semiconductor, what carries most of the current?
A) Electrons
B) Holes✓
C) Protons
D) Neutrons
57. How does a PN junction behave?
A) Like a resistor
B) Like a capacitor
C) Like a diode✓
D) Like a transformer
58. What are Group V impurities called in a semiconductor?
A) Acceptor impurities
B) Donor impurities✓
C) Neutral impurities
D) Insulator impurities
59. What are Group Three impurities called in a semiconductor?
A) Acceptor impurities✓
B) Donor impurities
C) Neutral impurities
D) Insulator impurities
60. Who discovered the relation between electric current and magnetic field?
A) Michael Faraday
B) Thomas Edison
C) Nikola Tesla
D) Hans Christian Oersted✓
61. What is the force experienced by a magnetic substance due to a magnet called?
A) Magnetic attraction
B) Magnetic repulsion
C) Magnetic force✓
D) Magnetic field
62. What is the region around a magnet where its effects can be experienced called?
A) Magnetic zone
B) Magnetic area
C) Magnetic field✓
D) Magnetic radius
63. What type of substances are attracted by a magnet?
A) Magnetic substances✓
B) Non-magnetic substances
C) Neutral substances
D) Insulating substances
64. Which of the following is an example of a non-magnetic substance?
A) Iron
B) Nickel
C) Copper
D) Wood✓
65. What is an example of a soft ferromagnetic substance?
A) Steel
B) Soft iron✓
C) Nickel
D) Copper
66. Which of the following is an example of a hard ferromagnetic substance?
A) Soft iron
B) Steel✓
C) Copper
D) Aluminum
67. Can magnetic lines of force intersect?
A) Yes, always
B) No, never✓
C) Yes, under specific conditions
D) No, unless they are parallel
68. What is a voltmeter's modified form?
A) Ammeter
B) Galvanometer✓
C) Multimeter
D) Wattmeter
69. What is an ammeter used to measure?
A) Voltage
B) Resistance
C) Current✓
D) Power
70. What is a low-value resistance called?
A) Shunt✓
B) Fuse
C) Resistor
D) Capacitor
71. How is an ammeter connected in a circuit?
A) In series✓
B) In parallel
C) Across the load
D) Across the source
72. What does the working of a Galvanometer depend upon?
A) Voltage
B) Current
C) Torque exerted on the coil✓
D) Temperature
73. What is a device used for the direction and measurement of current called?
A) Voltmeter
B) Ammeter
C) Galvanometer✓
D) Multimeter
74. What is demagnetization?
A) Increase in magnetic property
B) Loss of magnetic property✓
C) Formation of magnetic field
D) Magnification of magnetic force
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