Energy liberated when one atom of 235 92U undergoes fission reaction:
Energy liberated when one atom of 23592U undergoes fission reaction:
200 Mev | |
60 Mev | |
28 Mev | |
140 Mev |
Physics MCQS
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Which one of the following particles moving in the magnetic field cannot be deflected:
Which one of the following particles moving in the magnetic field cannot be deflected:
Electron | |
β-particle | |
α-particie | |
Neutron |
With the rise in temperature, the conductivity of semi-conductor material:
With the rise in temperature, the conductivity of semi-conductor material:
Increases linearly | |
Decreases linearly | |
Decreases exponentially | |
Increases exponentially |
The energy of the photon of wavelength 500 nm is:
The energy of the photon of wavelength 500 nm is:
1.52 eV | |
2.49 eV | |
3.10 eV | |
1.77 eV |
The wavelength associated with the proton moving at a speed of 40 m/s is:
The wavelength associated with the proton moving at a speed of 40 m/s is:
7.20 nm | |
17.3 nm | |
9.02 nm | |
15.7 nm |
Two oppositely charged balls A and B attract the third ball C, when placed near them, turn by turn. The third ball C must be:
Two oppositely charged balls A and B attract the third ball C, when placed near them, turn by turn. The third ball C must be:
Negatively charged | |
Positively charged | |
Electrically neutral | |
Positively and negatively Charged |
The electric potential at a mid-point in an electric dipole is:
The electric potential at a mid-point in an electric dipole is:
1 V | |
1.5 V | |
0 V | |
0.5 V |
Very weak magnetic field produced by brain can be detected by:
Very weak magnetic field produced by brain can be detected by:
Metallic Needle | |
Compass | |
Squids | |
Liquids |
In electron transition from lower to higher orbit atom cannot emit:
In electron transition from lower to higher orbit atom cannot emit:
Ultraviolet Rays | |
Visible Rays | |
Infrared | |
γ Rays |
To construct a step up transformer:
To construct a step up transformer:
Ns < Np | |
NsNp = 1 | |
Ns > Np | |
Ns = Np |
X-rays are the electromagnetic radiations having the wavelength in range:
X-rays are the electromagnetic radiations having the wavelength in range:
10-6 m | |
10-8 m | |
10-12 m | |
10-12 m |
In p-type substance, the majority charge carriers are:
In p-type substance, the majority charge carriers are:
Electrons | |
Holes | |
Protons | |
Neutrons |
The factor h/moc in Compton equation has the dimension of:
The factor h/moc in Compton equation has the dimension of:
Momentum | |
Mass | |
Pressure | |
Length |
Commutators are used in:
Commutators are used in:
A.C Motor | |
D.C Rotator | |
A.C Generator | |
D.C Generator |
Sec/Ohm is equal to
Sec/Ohm is equal to
Coulomb | |
Joule | |
Ampere | |
Farad |
The Boolean expression of NAND gate is:
The Boolean expression of NAND gate is:
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The numerical value of Rydberg's constant is:
The numerical value of Rydberg's constant is:
1.0974 x 10-7 | |
1.0974 x 10-14 | |
1.0974 x 107 | |
1.0974 x 1014 |
The numerical value of Stegfen's constant is:
The numerical value of Stegfen's constant is:
2.9 x 10-3 | |
6.63 x 10-34 | |
1.6 x 10-19 | |
5.76 x 10-8 |
Henry is equal to
Henry is equal to
V-1s-1A | |
Vs-1A | |
V-1s-1A-1 | |
VsA-1 |
It is required to suspend a proton of charge 'q' and mass 'm' in an electric field the strength of the field must be:
It is required to suspend a proton of charge 'q' and mass 'm' in an electric field the strength of the field must be:
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