A converging lens of focal length 5cm forms a virtual ima...
A converging lens of focal length 5cm forms a virtual image which is 20cm from the lens. How far from the lens is the object?
2.0cm
4.0 cm
6.7cm
20.0cm
25.0cm
Correct answer is B
No explanation has been provided for this answer.
The main reason for making the cover of a vacuum flask airtight is to prevent heat loss by ...
If a sound wave goes from a cold air region to a hot air region, its wavelength will ...
In an experiment in which molten naphthalene is allowed to cool, the cooling curve i n the figu...
I. reproducibility II. Sensibility III. High terminal capacity iv. High accuracy The quantities ...
A blacksmith heated a metal whose cubic expansivity is 6.3 x 10-6K-1. The area expansivity is...
Total internal reflection will not occur when light travels from ...
An atom is normally electrically neutral because the ...
What happens when a, certain quantity of pure ice is completely changed to water at 0oC? ...