The Nuclear doctrine of India contains
A. No first use
B. Unilateral moratorium
C. Minimum Credible deterrence
D. All of the above
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The Nuclear Fuel Complex is situated at . . . . . . . .
A. Hyderabad
B. Thumba
C. Kalpakkam
D. Mumbai
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In a nuclear reactor, . . . . . . . . is used to control the rate of fission reaction which itself absorbs neutrons without fission.
A. heavy water
B. graphite
C. water
D. cadmium
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Which of the following is used for regulated electric supply?
A. Zener diode
B. Junction diode
C. Gun diode
D. Tunnel diode
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Consider the following statements about visible light, UV light and X-ray.
1. The wavelength of visible light is more than that of X-ray.
2. The energy of X-ray photons is higher than that of UV light photons.
3. The energy of UV light photons is less than that of visible light photons.
Which of the statement(s) given above is/are correct?
A. 1, 2 and 3
B. 1 and 2
C. 2 and 3
D. Only 1
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Beta rays emitted by a radioactive material are
A. Beta rays emitted by a radioactive material are
B. charged particles emitted by nucleus
C. neutral particles
D. electromagnetic radiations
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During nuclear fusion,
A. Neutron bombardment causes heavy nucleus break down
B. A heavy nucleus automatically breaks down
C. Two light nuclei form a heavy nucleus
D. A light nucleus automatically breaks down
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The device which transfer the signal from low resistance region to high resistance region is
A. diode
B. transistor
C. capacitor
D. inductor
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As of November 2020, how many nuclear power reactors are operating in India?
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What is the source of electrical energy in an artificial satellite?
A. Solar cells
B. Mini nuclear reactor
C. Dynamo
D. Thermopile
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γ-rays are deflected by
A. a magnetic field but not by an electric field
B. an electric field but not by a magnetic field
C. both electric and magnetic field
D. neither an electric field nor magnetic field
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Consider the following statements.
In a nuclear reactor, self-sustained chain reaction is possible because
1. More neutrons are released in each of the fission reactions.
2. The neutrons immediately take park in the fission process.
3. The fast neutrons are slowed down by graphite.
4. Every neutron released in the fission reaction initiates further fission.
Which of these statements are correct?
A. Only 1, 2 and 3
B. Only 1 and 3
C. Only 2 and 4
D. Only 2, 3 and 4
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In photoelectic effect, the number of photo electrons emitted is proportional to
A. velocity of incident beam
B. work function of photo cathode
C. frequency of incident beam
D. intensity of incident beam
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Photoelectric effect can be explained by assuming that light
A. can be polarised
B. consist of quanta
C. is a form of transverse wave
D. is a form of longitudinal wave
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In which state is Pokhran, the site of India's first nuclear explosion, located?
A. Punjab
B. Andhra Pradesh
C. Rajasthan
D. Odisha
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Why was the Thomson's model of an atom failed?
A. It did not give an idea about the discrete energy level
B. It explained the atom as a whole to be electrically neutral
C. It did not tell about the presence of electrons
D. None of the above
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The Newton-Bhabha Fund Program was a joint initiative of
A. America and Pakistan
B. India and Britain
C. India and America
D. America and Britain
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In the modem day's nuclear medicine plays a vital role in Medical Science, it is exactly
A. They are drugs
B. They are infusion of herbs
C. They are radio isotopes
D. They are chlorofluorocarbons
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The official code name of Pokhran nuclear test 1974, was
A. Smiling Buddha
B. Thunder Bolt
C. Flying Garud
D. Agni Pareeksha
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Photovoltaic cells are
A. Solar cells
B. Thermal cells
C. Sulphur cells
D. Molar cells
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