Which of the following rods of same material undergoes maximum elongation when subjected to a given force?
Options
(a) l=1 m, d=2 mm (b) l=2 m, d=1 mm (c) l=1 m, d=1 mm (d) […]
Water flows through a pipe. The area of cross-section at one place A₁=10 cm², velocity of flows 1 m/s and pressure 2000 Pa. At another place area A₂= 5 cm². What is the pressure at […]
A layer of glycerine of thickness 1 mm present between a large surface area of 0.1 m². With what force the small surface is to be pulled, so that it can move with a velocity […]
How many calories are required to heat 40 gram of argon from 40⁰C to 100⁰C at constant volume? ( R = 2 cal/mol.K)
Options
(a) 120 (b) 2400 (c) 1200 (d) 180
Correct […]
Two bulbs 40 watt and 60 watt and rated voltage 240 V are connected in series across a potential difference of 420 V. Which bulb will work at above its rated voltage
Options
Solar radiation is
Options
(a) transverse electromagnetic wave (b) longitudinal electromagnetic wave (c) both longitudinal and transverse electromagnetic waves (d) none of these
Correct Answer:
transverse electromagnetic wave
Explanation:
No explanation available. Be […]
G. Mendel used the plant
Options
(a) Oenothera lamarkiana (b) Lathyrus sativus (c) Mirabilis jalapa (d) Pisum sativum
Correct Answer:
Pisum sativum
Explanation:
Simple to Cultivate: Pea plant (Pisum sativum) used to be […]
Most potential organism for the production of insecticide is
Options
(a) Xanthomonas oryzae (b) Bacillus thuringiensis (c) Eramis tiliaria (d) Helianthis zea
Correct Answer:
Bacillus thuringiensis
Explanation:
Bacillus thuringiensis produces delta-endotoxin and it kills […]
A sarcomere in the myofibrils of muscle is found in between
Options
(a) 2 M-lines (b) 2 Z-lines (c) 2 H-zones (d) 2 A-bands
Correct Answer:
2 Z-lines
Explanation:
No explanation available. Be […]
When the wavelength of sound changes from 1 m to 1.01 m, the number of beats heard are 4. The velocity of sound is
Options
(a) 400 m/s (b) 300 m/s (c) 404 m/s […]
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