Q. Which color has the maximum wavelength in visible spectrum?

  • (A) Violet
  • (B) Blue
  • (C) Green
  • (D) Red
πŸ“ Notes
βœ… Correct Answer: (D) Red
Explanation: Red light has the maximum wavelength and minimum frequency in the visible spectrum.

Q. The kinetic energy of a body of mass 4 kg moving with velocity 5 m/s is:

  • (A) 25 J
  • (B) 50 J
  • (C) 75 J
  • (D) 100 J
πŸ“ Notes
βœ… Correct Answer: (B) 50 J
Explanation: KE = 1/2 mv² = 1/2 × 4 × 5² = 50 J.

Q. The image formed by a plane mirror is:

  • (A) Real and inverted
  • (B) Virtual and erect
  • (C) Real and erect
  • (D) Virtual and inverted
πŸ“ Notes
βœ… Correct Answer: (B) Virtual and erect
Explanation: A plane mirror always forms a virtual, erect image of the same size as the object.

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