A man 1.5m tall is standing 3m in front of a pinhole came...
A man 1.5m tall is standing 3m in front of a pinhole camera whose distance between the hole and the screen is 0.1m. What is the height of the image of the man on the screen?
0.05m
0.15m
0.30m
1.00m
Correct answer is A
hi=ho×Vu
hi=1.5×0.13
= 0.05m
The time rate of increase in velocity is called ...
When two mirrors are placed at an angle of 90º to each other, how many images will be form...
In the fig above W1 = 200g, and W2 =450g . Calculate the extension of the spring per unit load? [...
The pair of physical quantities consisting of vectors only are ...
Which of the following is/are the limitations to the Rutherford's atomic models? I. It is appli...
Which device does NOT make use of the magnetic effects of an electric current? ...