A radiotransmitter radiates 1 kW power at a wavelength 198.6 m. How many photons does it emit per second
Options
(a) 10¹⁰ (b) 10²⁰ (c) 10³⁰ (d) 10⁴⁰
Correct Answer:
10³⁰
Explanation:
No […]
The r.m.s speed of the molecules of a gas in a vessel is 400 m/s. If half of the gas leaks out at constant temperature, the r.m.s speed of the remaining molecules will be
The maximum and minimum magnitudes of the resultant of two vectors are 17 units and 7 units respectively. If these two vectors are at right angles to each other, the magnitude of their resultant is […]
The trivial names of propanone and 3-methyl-2-butanone are
Options
(a) acetone and methyl isopropyl ketone (b) diisopropyl ketone and acetone (c) acetone and diisopropyl ketone (d) aldone and butane
Correct Answer:
acetone and […]
Bacteria useful in biogas fermentation are
Options
(a) Methanogens (b) Halophiles (c) Vibrio (d) Thermoacidophiles
Correct Answer:
Methanogens
Explanation:
No explanation available. Be the first to write the explanation for this question by […]
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