The image in a pin-hole camera is
...The image in a pin-hole camera is
errect and formed by refraction through a lens
virtual and formed by dispersion
erect and gets sharper as the hole becomes larger
inverted and formed by the light from each point travelling in a straight line
Correct answer is D
No explanation has been provided for this answer.
In a p-type semiconductor, the? ...
A device that converts mechanical energy into electrical energy is ...
The energy stored in a capacitor of capacitance 10μF carrying a charge of 100μC...
Which of the following statements are not true of a moving-coil milliammeter? I. It can be used t...
The following statements about a loudspeaker are correct except? ...