2Hz
4Hz
8Hz
258Hz
Correct answer is B
F = F2 - F1
= 260 - 256
= 4Hz
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.