An object is placed 10cm from a converging lens of foal length 15cm. Calculate the…
An object is placed 10cm from a converging lens of foal length 15cm. Calculate the magnification of the…
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A ray of light passes from air to water to glass to air. Given that…
A ray of light passes from air to water to glass to air. Given that the refractive index…
An object is placed at a point X between the focal point F and the…
An object is placed at a point X between the focal point F and the optical centre C…
An object of height 2.5cm is places 20cm from a convex mirror of focal length…
An object of height 2.5cm is places 20cm from a convex mirror of focal length 10cm. Calculate the…
Which of the following properties of waves is exclusive to transverse waves?
Which of the following properties of waves is exclusive to transverse waves? A. reflection B. interference C. diffraction…
When two waves are superimposed on each other, the following occurrences are possible, except
When two waves are superimposed on each other, the following occurrences are possible, except A. nodal lins B.…
Which of the following factors decreases the rate of evaporation of a liquid?
Which of the following factors decreases the rate of evaporation of a liquid? A. increase in pressure over…
A piece of copper of mass 20g at a temperature of 110°C was dropped into…
A piece of copper of mass 20g at a temperature of 110°C was dropped into a mixture of…
In the formation of sea breeze. wind blows from
In the formation of sea breeze. wind blows from A. sky to land B. sea to sky C.…
The thermopile is a device for detecting
The thermopile is a device for detecting A. radioactive radiations B. radiant energy C. x-rays D. the presence…