100\(cm^3\)
40\(cm^3\)
20\(cm^3\)
10\(cm^3\)
4\(cm^3\)
Correct answer is C
No explanation has been provided for this answer.
Which of the following is not true of the similarities between a camera and the human eye?
Both the camera and the human eye have light proof interiors
Both the camera and the human eye have light sensitive screens
Inverted images are formed on the screen in both
The distance between the lens and the screen is fixed in both
The amount of light entering both the eye and the camera can be adjusted
Correct answer is D
No explanation has been provided for this answer.
The invisible part of the spectrum of a white light consists of the following colors
Red, orange and yellow only
Infra-red, ultraviolet and blue only
Indigo and green only
Violet and red only
Ultra violet and infra-red only
Correct answer is E
No explanation has been provided for this answer.
250W
125W
50W
35.4W
12.5W
Correct answer is A
P=\(I^2R= 25\times 10=250W\)
10/3π
5/2 π
4/5 π
2/3 π
π/3
Correct answer is C
Phase difference = \(\frac{2\pi x}{\lambda}\)
= \(\frac{2\pi \times 20}{50}\)
= \(\frac{4}{5} \pi\)