what part of the camera corresponds to the iris of the eye?
shutter
film
lens
diaphram
focusing ring
Correct answer is D
No explanation has been provided for this answer.
less than f
greater than f but less than 3f
equal to f
equal to 2f
greater than 2f
Correct answer is C
No explanation has been provided for this answer.
i and ii only
i and iv only
ii and iii only
i and ii only
Correct answer is D
No explanation has been provided for this answer.
An image which can be formed on a screen is said to be
virtual
blurred
inverted
erect
real
Correct answer is E
No explanation has been provided for this answer.
Calculate the refractive index of the material of the glass block shown in the diagram if YZ = 4cm
0.40
0.60
1.50
1.67
2.50
Correct answer is D
n = \(\frac{\text{real depth}}{\text {apparent depth}}\)
\(\frac{10}{10^{-4}}\) = 1.6
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