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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): Photosensitivity of a material is high if its work function is low.
Reason (R): Work function = hf0, where f0 is threshold frequency.
- a)Both A and R are true and R is the correct explanation of A
- b)Both A and R are true but R is NOT the correct explanation of A
- c)A is true but R is false
- d)A is false and R is true
Correct answer is option 'B'. Can you explain this answer?
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Directions : In the following questions, A statement of Assertion (A)...
Work function is less means less energy is required to eject photoelectrons. So, if the work function is less photosensitivity is high. So the assertion is true.
Work function is the minimum energy required to eject a photoelectron and Work function = hf0, where f0 is threshold frequency. So reason is also true but it does not explain the assertion.
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Directions : In the following questions, A statement of Assertion (A)...
Assertion (A): Photosensitivity of a material is high if its work function is low.
Reason (R): Work function = hf0, where f0 is the threshold frequency.
In order to understand the relationship between photosensitivity and work function, let's first define these terms:
Photosensitivity: Photosensitivity refers to the ability of a material to emit electrons when exposed to light.
Work function: The work function of a material is the minimum energy required to remove an electron from the surface of the material.
Now, let's analyze the given Assertion and Reason:
Assertion (A): Photosensitivity of a material is high if its work function is low.
This statement implies that there is a direct relationship between photosensitivity and work function. According to this assertion, if the work function of a material is low, its photosensitivity will be high.
Reason (R): Work function = hf0, where f0 is the threshold frequency.
This statement provides the equation for the work function, which states that the work function is equal to the product of the Planck's constant (h) and the threshold frequency (f0).
Now, let's analyze the relationship between the assertion and the reason:
Both the assertion and the reason are true. The work function is indeed equal to hf0, where f0 is the threshold frequency. The threshold frequency is the minimum frequency of light required to eject an electron from the surface of a material. Therefore, if the threshold frequency is known, the work function can be calculated.
The reason explains the assertion correctly. When the work function of a material is low, it means that less energy is required to remove an electron from the surface. This implies that the material is more sensitive to light, as it can easily emit electrons when exposed to even low-energy photons. Therefore, a low work function corresponds to high photosensitivity.
Hence, both the assertion and the reason are true, and the reason correctly explains the assertion. Therefore, the correct answer is option B: Both A and R are true, but R is NOT the correct explanation of A.
Reason (R): Work function = hf0, where f0 is the threshold frequency.
In order to understand the relationship between photosensitivity and work function, let's first define these terms:
Photosensitivity: Photosensitivity refers to the ability of a material to emit electrons when exposed to light.
Work function: The work function of a material is the minimum energy required to remove an electron from the surface of the material.
Now, let's analyze the given Assertion and Reason:
Assertion (A): Photosensitivity of a material is high if its work function is low.
This statement implies that there is a direct relationship between photosensitivity and work function. According to this assertion, if the work function of a material is low, its photosensitivity will be high.
Reason (R): Work function = hf0, where f0 is the threshold frequency.
This statement provides the equation for the work function, which states that the work function is equal to the product of the Planck's constant (h) and the threshold frequency (f0).
Now, let's analyze the relationship between the assertion and the reason:
Both the assertion and the reason are true. The work function is indeed equal to hf0, where f0 is the threshold frequency. The threshold frequency is the minimum frequency of light required to eject an electron from the surface of a material. Therefore, if the threshold frequency is known, the work function can be calculated.
The reason explains the assertion correctly. When the work function of a material is low, it means that less energy is required to remove an electron from the surface. This implies that the material is more sensitive to light, as it can easily emit electrons when exposed to even low-energy photons. Therefore, a low work function corresponds to high photosensitivity.
Hence, both the assertion and the reason are true, and the reason correctly explains the assertion. Therefore, the correct answer is option B: Both A and R are true, but R is NOT the correct explanation of 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): Photosensitivity of a material is high if its work function is low.Reason (R): Work function = hf0, where f0 is threshold frequency.a)Both A and R are true and R is the correct explanation of Ab)Both A and R are true but R is NOT the correct explanation of Ac)A is true but R is falsed)A is false and R is trueCorrect answer is option 'B'. Can you explain this answer?
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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): Photosensitivity of a material is high if its work function is low.Reason (R): Work function = hf0, where f0 is threshold frequency.a)Both A and R are true and R is the correct explanation of Ab)Both A and R are true but R is NOT the correct explanation of Ac)A is true but R is falsed)A is false and R is trueCorrect answer is option 'B'. Can you explain this answer? for Class 12 2024 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 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): Photosensitivity of a material is high if its work function is low.Reason (R): Work function = hf0, where f0 is threshold frequency.a)Both A and R are true and R is the correct explanation of Ab)Both A and R are true but R is NOT the correct explanation of Ac)A is true but R is falsed)A is false and R is trueCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Class 12 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): Photosensitivity of a material is high if its work function is low.Reason (R): Work function = hf0, where f0 is threshold frequency.a)Both A and R are true and R is the correct explanation of Ab)Both A and R are true but R is NOT the correct explanation of Ac)A is true but R is falsed)A is false and R is trueCorrect answer is option 'B'. Can you explain this answer?.
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): Photosensitivity of a material is high if its work function is low.Reason (R): Work function = hf0, where f0 is threshold frequency.a)Both A and R are true and R is the correct explanation of Ab)Both A and R are true but R is NOT the correct explanation of Ac)A is true but R is falsed)A is false and R is trueCorrect answer is option 'B'. Can you explain this answer? for Class 12 2024 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 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): Photosensitivity of a material is high if its work function is low.Reason (R): Work function = hf0, where f0 is threshold frequency.a)Both A and R are true and R is the correct explanation of Ab)Both A and R are true but R is NOT the correct explanation of Ac)A is true but R is falsed)A is false and R is trueCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Class 12 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): Photosensitivity of a material is high if its work function is low.Reason (R): Work function = hf0, where f0 is threshold frequency.a)Both A and R are true and R is the correct explanation of Ab)Both A and R are true but R is NOT the correct explanation of Ac)A is true but R is falsed)A is false and R is trueCorrect answer is option 'B'. 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): Photosensitivity of a material is high if its work function is low.Reason (R): Work function = hf0, where f0 is threshold frequency.a)Both A and R are true and R is the correct explanation of Ab)Both A and R are true but R is NOT the correct explanation of Ac)A is true but R is falsed)A is false and R is trueCorrect answer is option 'B'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 12.
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Here you can find the meaning of 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): Photosensitivity of a material is high if its work function is low.Reason (R): Work function = hf0, where f0 is threshold frequency.a)Both A and R are true and R is the correct explanation of Ab)Both A and R are true but R is NOT the correct explanation of Ac)A is true but R is falsed)A is false and R is trueCorrect answer is option 'B'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
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): Photosensitivity of a material is high if its work function is low.Reason (R): Work function = hf0, where f0 is threshold frequency.a)Both A and R are true and R is the correct explanation of Ab)Both A and R are true but R is NOT the correct explanation of Ac)A is true but R is falsed)A is false and R is trueCorrect answer is option 'B'. Can you explain this answer?, a detailed solution 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): Photosensitivity of a material is high if its work function is low.Reason (R): Work function = hf0, where f0 is threshold frequency.a)Both A and R are true and R is the correct explanation of Ab)Both A and R are true but R is NOT the correct explanation of Ac)A is true but R is falsed)A is false and R is trueCorrect answer is option 'B'. Can you explain this answer? has been provided alongside types of 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): Photosensitivity of a material is high if its work function is low.Reason (R): Work function = hf0, where f0 is threshold frequency.a)Both A and R are true and R is the correct explanation of Ab)Both A and R are true but R is NOT the correct explanation of Ac)A is true but R is falsed)A is false and R is trueCorrect answer is option 'B'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice 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): Photosensitivity of a material is high if its work function is low.Reason (R): Work function = hf0, where f0 is threshold frequency.a)Both A and R are true and R is the correct explanation of Ab)Both A and R are true but R is NOT the correct explanation of Ac)A is true but R is falsed)A is false and R is trueCorrect answer is option 'B'. Can you explain this answer? tests, examples and also practice Class 12 tests.
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