From the following equations, pick out the possible nuclear reactions
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(a) |
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(b) |
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(c) |
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(d) |
From the following equations, pick out the possible nuclear reactions
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(a) |
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(b) |
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(c) |
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(d) |
(d) ![]()
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Assertion : In high latitude one sees colourful curtains of light hanging down from high altitudes.
Reason : The high energy charged particles from the sun are deflected to polar regions by the magnetic field of the earth.
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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. |
Two magnets, each of magnetic moment ‘M’ are placed so as to form a cross at right angles to each other. The magnetic moment of the system will be
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(a) 2M |
(b) |
(c) 0.5 M |
(d) M |
A storage cell is charged by 5 amp D.C. for 18 hours. Its strength after charging will be
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(a) 18 AH |
(b) 5 AH |
(c) 90 AH |
(d) 15 AH |
A thin mica sheet of thickness 2 and refractive index μ = 1.5 is introduced in the path of the first wave. The wavelength of the wave used is 5000 Å. The central bright maximum will shift
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(a) 2 fringes upward |
(b) 2 fringes downward |
(c) 10 fringes upward |
(d) None of these |