0.750m
1.013m
1.330m
13.3000m
Correct answer is C
n = \(\frac{\text {real depth}}{\text{apparent depth}}\)
1.33 = \(\frac{\text {real depth}}{1}\)
real depth = 1.33cm
0.5cm
1.5cm
2.0cm
6.0cm
Correct answer is B
F = \(\frac{UV}{U + V}\)
20 = \(\frac{60 \times V}{60 + V}\)
V = 30cm
similarly, \(\frac{U}{V}\) = \(\frac{\text{height of object}}{\text{height of image}}\)
\(\frac{60}{30}\) = \(\frac{3}{h}\)
h = 1.5cm
If an object is placed in front of two mirrors inclined at 90o, how many images will be formed?
five
four
three
two
Correct answer is C
n = \(\frac{360}{\theta}\) - 1
= 360 - 1
= 3 images
f\(\alpha\)/
f\(\alpha \frac{1}{I^2}\)
f \(\alpha\sqrt I\)
f\(\alpha \frac{1}{1}\)
Correct answer is D
F = \(\frac{1}{2L}\sqrt\frac{T}{m}\)
Which of the following statements supports the assumption that light travels in straight lines?
light can be diffracted
a source of light produces distinct shadows of opaque objects
a source of light produces interference patterns on a suitably placed screen
light can be reflected
Correct answer is B
No explanation has been provided for this answer.