When a yellow card is viewed in blue light, It will appea...
When a yellow card is viewed in blue light, It will appear
black
orange
purple
red
white
Correct answer is A
Yellow does not contain blue, so it will appear black under blue light
The diagram above illustrates a freely suspended bar magnet NS hanging from a point in a horizontal ...
Two metals P and Q are heated through the same temperature difference. If the ratio of the linear ex...
A magnet relay is a device used for? ...
Which of the following has the same unit as the moment of a force?...
Calculate the inductance L of the coil in the circuit shown above. ...
A man wears convex lens glasses of focal length 30cm in order to correct his eye defect. instead of ...
When an object is placed between the principal focus and the optical center of a convex lens, it cou...
From the principle of flotation, a body sinks in a fluid until it displace a quantity equal to its o...
In the series a.c circuit shown above, the p.d across the inductor is 8Vr.m.s and that across the re...
Which of the following is used for the correction of short sightedness? ...
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