If two electric bulbs have 40 W and 60 W ratings at 220 V, then the ratio
If two electric bulbs have 40 W and 60 W ratings at 220 V, then the ratio of their resistances will be
Options
(a) (3:2) (b) (2:3) (c) (3:4) (d) (4:3)
Correct Answer:
(3:2)
If two electric bulbs have 40 W and 60 W ratings at 220 V, then the ratio of their resistances will be
Options
(a) (3:2) (b) (2:3) (c) (3:4) (d) (4:3)
Correct Answer:
(3:2)
The pH of stomach ranges between
Options
(a) 7.1 to 8.2 (b) 7.6 to 8.6 (c) 1.5 to 2.0 (d) 6.8 to 7.2
Correct Answer:
1.5 to 2.0
Explanation:
No explanation available. Be […]
Swan neck flask experiment was performed by
Options
(a) Louis Pasteur (b) Darwin (c) Oparin & Haldane (d) Aristotle
Correct Answer:
Louis Pasteur
Explanation:
No explanation available. Be the first to write the […]
The spark-discharge apparatus to test chemical evolution life was designed by
Options
(a) Oparin and Haldane (b) Urey and Miller (c) Jacob and Monod (d) Dixon and Jolley
Correct Answer:
Urey and Miller
MOET is a method of
Options
(a) fish cultivation (b) birth control in humans (c) cloning is sheep (d) hybridization in cattles
Correct Answer:
hybridization in cattles
Explanation:
Multiple Ovulation Embryo Transfer (MOET) […]
When we hear a sound, we can identify its source from
Options
(a) Amplitude of sound (b) Intensity of sound (c) Wavelength of sound (d) Overtones present in the sound
Correct Answer:
Overtones present […]
Newton postulated his corpuscular theory on the basis of
Options
(a) Newton’s Rings (b) Colours of thin films (c) Rectilinear propagation of light (d) Dispersion of white light
Correct Answer:
Rectilinear propagation of light
The S.I. unit of electric flux is
Options
(a) Weber (b) Newton per coulomb (c) Volt x metre (d) Joule per coulomb
Correct Answer:
Volt x metre
Explanation:
No explanation available. Be the […]
A spherical conductor of radius 2 m is charged to a potential of 120 V. It is now placed inside another hollow spherical conductor of radius 6 m. Calculate the potential to which the bigger […]
The work function for aluminium is 4.125 eV. The cutoff wavelength for photoelectric effect for aluminium will be
Options
(a) 300 nm (b) 200 nm (c) 350 nm (d) 420 nm
Correct Answer: […]
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