In 1831, Robert Brown described
Options
(a) nucleus (b) cell (c) nucleolus (d) dictyosome
Correct Answer:
nucleus
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting […]
Fluid mosaic model of cell membrane was put forward by
Options
(a) Danielli and Davson (b) Singer and Nicolson (c) Garner and Allard (d) Watson and Crick
Correct Answer:
Singer and Nicolson
Explanation:
No […]
A disc of radius 0.1 m is rotating with a frequency 10 rev/sec in a normal magnetic field of strength 0.1 tesla. Net induced emf is
Options
(a) 2 π x 10⁻² V (b) […]
Which of the following organelle is common between plant and animal?
Options
(a) chloroplasts (b) centriole (c) mitochondria (d) cell wall
Correct Answer:
mitochondria
Explanation:
No explanation available. Be the first to write […]
Characteristic feature of halophytes are
Options
(a) velamen (b) hydathode (c) pneumatophore (d) lenticel
Correct Answer:
pneumatophore
Explanation:
No explanation available. Be the first to write the explanation for this question by […]
An artery is a vessel that carries blood
Options
(a) away from the heart (b) towards the heart (c) which is deoxygenated without any exception (d) none of the above
Correct Answer:
away […]
The maximum and minimum intensities of two sources is 4:1. The ratio of amplitude is
Options
(a) 3 : 1 (b) 1 : 3 (c) 1 : √3 (d) √3 : 1
Correct Answer: […]
Two bodies A and B having temperature 327° C and 427° C are radiating heat to the surroundings. The surrounding temperature is 27°C. The ratio of rate of heat radiation of A to that of […]
If force is proportional to square of velocity, then the dimension of proportionality constant is
Options
(a) MLT⁰ (b) MLT⁻¹ (c) ML⁻²T (d) ML⁻¹T⁰
Correct Answer:
ML⁻¹T⁰
Explanation:
No explanation available. Be the […]
The rest mass of a body is m1. It moves with a velocity of 0.6c, then its relativistic mass if m then
Options
(a) m = m1 (b) m < m1 (c) m […]
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