1.3cm
8.6cm
35.0cm
60.0cm
Correct answer is D
\(\frac{1}{v} = \frac{1}{f} - \frac{1}{U}\)
\(\frac{1}{15} - \frac{1}{20} = 60cm\)
C + V
\(\frac{C}{V}\)
\(\frac{V}{C}\)
C - V
Correct answer is B
No explanation has been provided for this answer.
Total internal reflection occurs in an optical prism when light rays
travel from the prism into an optically denser medium
are incident in the prism at an angle greater than the critical angle
are incident normally in the prism
travel from the prism to the air
Correct answer is B
No explanation has been provided for this answer.
1.48
1.50
1.53
1.67
Correct answer is C
n = \(\frac{\sin \frac{1}{2} (dm + A)}{\sin \frac{1}{2} A}\)
= \(\frac{\sin \frac{1}{2} (40 + 60)}{\sin \frac{1}{2} \times 60}\)
= 1.532
The image formed by a convex mirror is always
real, erect and diminished
real, inverted and diminished
virtual, inverted and diminished
virtual, erect and diminished
Correct answer is D
No explanation has been provided for this answer.