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Directions: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:
Assertion (A): In the case of a rainbow, light at the inner surface of the water drop gets internally reflected.
Reason (R): The angle between the refracted ray and normal to the drop surface is greater than the critical angle.
  • a)
    Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).
  • b)
    Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).
  • c)
    Assertion (A) is true but reason (R) is false.
  • d)
    Assertion (A) is false but reason (R) is true.
Correct answer is option 'A'. Can you explain this answer?
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Directions: In the following questions, a statement of assertion (A) ...
The rainbow is formed when light at the inner surface of the water drop gets internally reflected. If the angle between the refracted ray and normal to the drop surface is greater than the critical angle.
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Directions: In the following questions, a statement of assertion (A) ...
Assertion (A): In the case of a rainbow, light at the inner surface of the water drop gets internally reflected.
Reason (R): The angle between the refracted ray and normal to the drop surface is greater than the critical angle.

To understand the given assertion and reason, let's first discuss the phenomenon of a rainbow and the role of refraction and reflection in its formation.

Rainbow Formation:
A rainbow is a meteorological phenomenon that occurs when sunlight is reflected, refracted, and dispersed in water droplets in the air. When sunlight passes through water droplets, it undergoes both reflection and refraction.

Internal Reflection:
When light passes from a denser medium (such as water) to a rarer medium (such as air), it refracts away from the normal (an imaginary line perpendicular to the surface). However, if the angle of incidence is greater than the critical angle, the light gets internally reflected back into the denser medium.

Explanation of Assertion (A):
In the case of a rainbow, the sunlight enters a water droplet and undergoes refraction at its surface. The angle of incidence is such that it is greater than the critical angle for water-air interface. Therefore, the light gets internally reflected at the inner surface of the water drop.

Explanation of Reason (R):
The reason states that the angle between the refracted ray and the normal to the drop surface is greater than the critical angle. This is true because in order for the light to get internally reflected, the angle of incidence must be greater than the critical angle. The angle between the refracted ray and the normal is the angle of incidence, and it needs to exceed the critical angle for internal reflection to occur.

Conclusion:
Both the assertion and the reason are true, and the reason correctly explains the assertion. The angle of incidence being greater than the critical angle is the reason why the light at the inner surface of the water drop gets internally reflected in the case of a rainbow. Thus, the correct answer is option 'A'.
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Directions: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:Assertion (A): In the case of a rainbow, light at the inner surface of the water drop gets internally reflected.Reason (R): The angle between the refracted ray and normal to the drop surface is greater than the critical angle.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.Correct answer is option 'A'. Can you explain this answer?
Question Description
Directions: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:Assertion (A): In the case of a rainbow, light at the inner surface of the water drop gets internally reflected.Reason (R): The angle between the refracted ray and normal to the drop surface is greater than the critical angle.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.Correct answer is option 'A'. 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 Directions: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:Assertion (A): In the case of a rainbow, light at the inner surface of the water drop gets internally reflected.Reason (R): The angle between the refracted ray and normal to the drop surface is greater than the critical angle.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.Correct answer is option 'A'. 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 Directions: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:Assertion (A): In the case of a rainbow, light at the inner surface of the water drop gets internally reflected.Reason (R): The angle between the refracted ray and normal to the drop surface is greater than the critical angle.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.Correct answer is option 'A'. Can you explain this answer?.
Solutions for Directions: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:Assertion (A): In the case of a rainbow, light at the inner surface of the water drop gets internally reflected.Reason (R): The angle between the refracted ray and normal to the drop surface is greater than the critical angle.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.Correct answer is option 'A'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 10. Download more important topics, notes, lectures and mock test series for Class 10 Exam by signing up for free.
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