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When a ray of light travelling parallel to the principal axis of a concave mirror strikes at the polished surface of mirror, the reflected ray
  • a)
    is sent back along the same direction
  • b)
    passes through the principal focus of mirror
  • c)
    passes through the centre of curvature of mirror
  • d)
    passes through the pole of mirror
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
When a ray of light travelling parallel to the principal axis of a con...
When a ray of light travelling parallel to the principal axis of a concave mirror is incident on a concave mirror, the reflected beam passes through its principal focus.
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When a ray of light travelling parallel to the principal axis of a con...
Explanation:

When a ray of light travelling parallel to the principal axis of a concave mirror strikes at the polished surface of mirror, the reflected ray passes through the principal focus of the mirror.

Here is why:

- Definition of Principal Focus: The principal focus of a concave mirror is the point on the principal axis where light rays parallel to the principal axis converge or appear to diverge from after reflection.

- Behavior of Light Rays: When a ray of light parallel to the principal axis strikes a concave mirror, it reflects back through the principal focus. This is a result of the reflective properties of concave mirrors, where parallel rays of light converge at the principal focus after reflection.

- Concave Mirrors: Concave mirrors are curved inward and have reflective surfaces that cause light rays to converge. When a parallel ray of light strikes the concave mirror, it reflects in such a way that it passes through the principal focus.

- Principal Focus as Focal Point: The principal focus is also known as the focal point of the concave mirror, where light rays converge or appear to diverge from. This property of concave mirrors is utilized in various optical devices like telescopes and shaving mirrors.

Therefore, when a ray of light travelling parallel to the principal axis of a concave mirror strikes the mirror, the reflected ray passes through the principal focus of the mirror.
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When a ray of light travelling parallel to the principal axis of a con...
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When a ray of light travelling parallel to the principal axis of a concave mirror strikes at the polished surface of mirror, the reflected raya)is sent back along the same directionb)passes through the principal focus of mirrorc)passes through the centre of curvature of mirrord)passes through the pole of mirrorCorrect answer is option 'B'. Can you explain this answer?
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When a ray of light travelling parallel to the principal axis of a concave mirror strikes at the polished surface of mirror, the reflected raya)is sent back along the same directionb)passes through the principal focus of mirrorc)passes through the centre of curvature of mirrord)passes through the pole of mirrorCorrect answer is option 'B'. Can you explain this answer? for Class 10 2024 is part of Class 10 preparation. The Question and answers have been prepared according to the Class 10 exam syllabus. Information about When a ray of light travelling parallel to the principal axis of a concave mirror strikes at the polished surface of mirror, the reflected raya)is sent back along the same directionb)passes through the principal focus of mirrorc)passes through the centre of curvature of mirrord)passes through the pole of mirrorCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Class 10 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for When a ray of light travelling parallel to the principal axis of a concave mirror strikes at the polished surface of mirror, the reflected raya)is sent back along the same directionb)passes through the principal focus of mirrorc)passes through the centre of curvature of mirrord)passes through the pole of mirrorCorrect answer is option 'B'. Can you explain this answer?.
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