- ✓The binding energy per nucleon should be high.
- BThe binding energy per nucleon should be low.
- CThe number of electrons should be more.
- DNone of the above
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For the given combination of gates, if the logic states of inputs A, B, C are as follows A = B = C = 0 and A = B = 1, C = 0 then the logic states of output D are

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(a) 0, 0 |
(b) 0, 1 |
(c) 1, 0 |
(d) 1, 1 |
A finite ladder is constructed by connecting several sections of 2μF,4 μF capacitor combinations as shown in the figure. It is terminated by a capacitor of capacitance C. What value should be chosen for C such that the equivalent capacitance of the ladder between the points A and B becomes independent of the number of sections in between

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(a) 4μF |
(b) 2 μF |
(c) 18 μF |
(d) 6 μF |
An electron in the n = 1 orbit of hydrogen atom is bound by 13.6 eV. If a hydrogen atom is in the n = 3 state, how much energy is required to ionize it
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(a) 13.6 eV |
(b) 4.53 eV |
(c) 3.4 eV |
(d) 1.51 eV |
Assertion : The resistivity of a semiconductor increases with temperature.
Reason : The atoms of a semiconductor vibrate with larger amplitude at higher temperature there by increasing it's resistivity.
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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. |
According to Faraday's laws of electrolysis, the amount of decomposition is proportional to
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(a) |
(b) Electrochemical equivalent of the substance |
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(c) |
(d) |
Weber/m2 is equal to
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(a) Volt |
(b) Henry |
(c) Tesla |
(d) All of these |
An X-ray tube with a copper target emits Cu
line of wavelength 1.50 Å. What should be the minimum voltage through which electrons are to be accelerated to produce this wavelength of X rays (h = 6.63 ![]()
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(a) 8280 V |
(b) 828 V |
(c) 82800 V |
(d) 8.28 V |