Explanation:
In a photodiode, photocurrent is directly proportional to intensiy of incident light. More the incident light intensity, more will be the current produced.
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Assertion : Newton’s rings are formed in the reflected system. When the space between the lens and the glass plate is filled with a liquid of refractive index greater than that of glass, the central spot of the pattern is dark.
Reason : The reflection is Newton’s ring cases will be from a denser to a rarer medium and the two interfering rays are reflected under similar conditions.
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(a) If both assertion and reason are true and the reason is the correct explanation of the assertion. |
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(b) If both assertion and reason are true but reason is not the correct explanation of the assertion. |
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(c) If assertion is true but reason is false. |
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(d) If the assertion and reason both are false. |
A coil of inductance L is carrying a steady current i. What is the nature of its stored energy
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(a) Magnetic |
(b) Electrical |
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(c) Both magnetic and electrical |
(d) Heat |
Binding energy per nucleon verses mass number curve for nuclei is shown in the figure. W, X, Y and Z are four nuclei indicated on the curve. The process that would release energy is
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(a) Y → 2Z |
(b) W → X + Z |
(c) W → 2Y |
(d) X → Y + Z |
In the circuit given E = 6.0 V, R1 = 100 ohms, R2 = R3 = 50 ohms, R4 = 75 ohms. The equivalent resistance of the circuit, in ohms, is
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(a) 11.875 |
(b) 26.31 |
(c) 118.75 |
(d) None of these |
How should people wearing spectacles work with a microscope
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(a) They cannot use the microscope at all |
(b) They should keep on wearing their spectacles |
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(c) They should take off spectacles |
(d) (b) and (c) is both way |