The de-Broglie wavelength of an electron in the first Bohr orbit is
Options
(a) Equal to one-fourth the circumference of the first orbit (b) Equal to half the circumference of first orbit (c) […]
Velocities of sound measured in hydrogen and oxygen gas at a given temperature will be in the ratio
Options
(a) (1:4) (b) (4:1) (c) (2:1) (d) (1:1)
Correct Answer:
(4:1)
Explanation:
No explanation […]
A super conductor exhibits perfect
Options
(a) Ferrimagnetism (b) Ferromagnetism (c) Paramagentism (d) Diamagnetism
Correct Answer:
Diamagnetism
Explanation:
No explanation available. Be the first to write the explanation for this question by […]
A satellite is revolving around the earth with a kinetic energy E. The minimum addition of kinetic energy needed to make it escape from its orbit is
Options
(a) 2E (b) 2/E (c) […]
The resultant of two forces, one double the other in magnitude, is perpendicular to the smaller of the two forces. The angle between the two forces is
Options
(a) 60° (b) 150° (c) […]
A neutral fertilizer among these compounds is
Options
(a) ammonium nitrate (b) urea (c) CAN (d) ammonium sulphate
Correct Answer:
CAN
Explanation:
No explanation available. Be the first to write the explanation for […]
A drug that is antipyretic as well as analgesic is
Options
(a) Penicillin (b) Chloroquin (c) Para-acetamidophenol (d) Chloropromazine hydrochloride
Correct Answer:
Para-acetamidophenol
Explanation:
No explanation available. Be the first to write the […]
Water lost by transpiration is
Options
(a) rich in dissolved minerals (b) rich in solutes (c) pure water (d) rich in dissolved salts
Correct Answer:
pure water
Explanation:
No explanation available. Be the […]
In angiosperms, triple fusion results in the formation of
Options
(a) secondary nucleus (b) polar nucleus (c) primary endosperm nucleus (d) zygotic nucleus
Correct Answer:
primary endosperm nucleus
Explanation:
No explanation available. Be […]
The cohesive force existing between molecules of water is contributing to
Options
(a) plasmolysis (b) translocation (c) ascent of sap (d) osmosis
Correct Answer:
ascent of sap
Explanation:
No explanation available. Be the […]
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