- AAverage binding energy
- BNo. of protons
- CNo. of neutrons
- DNo. of electrons
Explanation:
Stability of nucleus is based on average binding energy i.e. binding energy per nucleon. This much energy will be needed for nucleon to break free.
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A charged water drop whose radius is 0.1 μm is in equilibrium in an electric field. If charge on it is equal to charge of an electron, then intensity of electric field will be (g = 10
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(a) 1.61 N/C |
(b) 26.2 N/C |
(c) 262 N/C |
(d) 1610 N/C |
In a single slit diffraction experiment first minimum for red light (660 nm) coincides with first maximum of some other wavelength l'. The value of l' is
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(a) 4400 Å |
(b) 6600 Å |
(c) 2000 Å |
(d) 3500 Å |
The emf of a thermocouple, one junction of which is kept at 0℃, is given by
the Peltier co-efficient will be
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(a) (t + 273) (a + 2bt) |
(b) (t + 273) (a – 2bt) |
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(c) (t – 273) (a- 2bt) |
(d) (t – 273) (a – 2bt) |
Which of the following statement is correct
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(a) Liquids obey fully the ohm's law |
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(b) Liquids obey partially the ohm's law |
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(c) There is no relation between current and p.d. for liquids |
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(d) None of the above |
Stars are twinkling due to
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(a) Diffraction |
(b) Reflection |
(c) Refraction |
(d) Scattering |
The equivalent quantity of mass in electricity is
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(a) Charge |
(b) Potential |
(c) Inductance |
(d) Current |
The mass number of a nucleus is
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(a) Always less than its atomic number |
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(b) Always more than its atomic number |
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(c) Always equal to its atomic number |
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(d) Sometimes more than and sometimes equal to its atomic number |
Conditions of diffraction is
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(a) |
(b) |
(c) |
(d) None of these |