\( \alpha = \beta \)
the efractive index of glass is \( \frac{sin\theta}{sin\alpha} \)
The ray suffers total internal reflection if \( \beta \) is greater than the critical angle
the efractive index of glass is \( \frac{sin\alpha}{sin\beta} \)
Correct answer is D
No explanation has been provided for this answer.
Zero
0.2N.m
0.4N.m
0.8N.m
0.6N.m
Correct answer is A
No explanation has been provided for this answer.
Given that SQ = 10cm and SP = 6cm, the refractive index of a block of glass shown above is
0.30
0.60
1.67
2.33
2.36
Correct answer is C
No explanation has been provided for this answer.
What is the acceleration of a particle whose motion is graphically displayed in the diagram above
0.67ms-2
0.83-2
0.87-2
92-2
2.0-2
Correct answer is A
No explanation has been provided for this answer.
The total capacitance of the circuit above is?
0.25mF
0.50mF
0.75mF
1.25mF
1.50mF
Correct answer is E
CTotal in parralel = C1 + C2 + C3
CTotal = 2 + 2 + 2 → 6
C Total in series = 1 / C\(_1\) + 1 / C\(_2\)
1 / C\(_T\) = 1/2 + 1/6
1 / C\(_T\) = \(\frac{4}{6}\)
cross multiply
C\(_T\) = \(\frac{3}{2}\) or 1.5mF
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