For a given velocity, a projectile has the same range R for two angles of projection. If t₁ and t₂ are the times of flight in the two cases, then
Options
(a) t₁t₂ […]
Two wires of the same dimensions but resistivities p1 and p2 are connected in series. The equivalent resistivity of the combination is
Options
(a) p1 + p2 (b) (p1 + p2) / 2 […]
The volume of water to be added to N/2 HCl to prepare 500 cm³ of N/10 solution is
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(a) 450 cm³ (b) 100 cm³ (c) 45 cm³ (d) 400 cm³
Correct Answer: […]
The formation of erythrocytes in foetus takes place in
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(a) liver and spleen (b) red bone marrow (c) blood plasma (d) sarcoplasm
Correct Answer:
liver and spleen
Explanation:
No explanation available. Be […]
Loss of forests, urbanization, increasing pollution are all due to
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(a) global warming (b) green house effect (c) population explosion (d) ozone depletion
Correct Answer:
population explosion
Explanation:
No explanation available. Be […]
The magnetic flux linked with a coil at any instant t is given by ?= (5t³ – 100t + 300). The e.m.f induced in the coil at t=2 sec is
Options
(a) 40 […]
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