If you want to learn more about the nature and properties of matter and energy or you're simply preparing for a Physics exam, these Physics past questions and answers are ideal for you.
The image is virtual, 3cm in front of the lens
The image is real, 6cm behind the lens
The image is virtual, 6cm in front of the lens
The image is real, 3cm in front the lens
Correct answer is A
F = \(\frac{uv}{u + v}\)
F = -ve
-12 = \(\frac{4 \times v}{4 + v}\)
v = -3cm
pass through undeviated
pass through the center of curvature after refraction
emerge parallel to the principal axis
pass through the principal focus after refraction
Correct answer is A
No explanation has been provided for this answer.
3.0cm
6.0cm
9.0cm
16.0cm
Correct answer is A
\(\frac{4}{3}\) = \(\frac{12}{\text {Apparent depth}}\)
Apparent depth = 9cm
Height by which coin is raised = 12 - 9
= 3cm
\(\frac{1}{2}\)\(\theta\)
\(\theta\)
2\(\theta\)
3\(\theta\)
Correct answer is C
No explanation has been provided for this answer.
The image in a pin-hole camera is
errect and formed by refraction through a lens
virtual and formed by dispersion
erect and gets sharper as the hole becomes larger
inverted and formed by the light from each point travelling in a straight line
Correct answer is D
No explanation has been provided for this answer.