SATHEE: Optics Question 956

Optics Question 956

Question: An isosceles trapezium of reflecting material of refractive index $\sqrt{2}$ and dimension of sides being 5 cm, 5 cm, 10 cm and 5 cm. The angle of minimum deviation by this when light is incident from air and emerges in air is:

Options:

A) $22 \frac{1}{2}^{\circ}$

B) $45^{\circ}$

C) $30^{\circ}$

D) $60^{\circ}$

Show Answer

Answer:

Correct Answer: D

Solution:

[d] If we complete the trapezium as shown it becomes an equilateral triangle

$\Rightarrow$ $A = 60^{o}$ $\frac{\sin [\frac{A + δ_{min}}{2}]}{s i n \frac{A}{2}} = μ$ $\frac{\sin [\frac{60 + δ_{min}}{2}]}{\sin \frac{60}{2}} = \sqrt{2}$ $δ_{min} = 30^{\circ}$

पिछला

अगला

Optics Question 956

Question: An isosceles trapezium of reflecting material of refractive index $\sqrt{2}$ and dimension of sides being 5 cm, 5 cm, 10 cm and 5 cm. The angle of minimum deviation by this when light is incident from air and emerges in air is:

Options:

Answer:

Solution:

इंजीनियरिंग की तैयारी

चिकित्सा तैयारी

एनसीईआरटी पुस्तकें और समाधान

महत्वपूर्ण संसाधन

अन्य संसाधन

पाठ्यक्रम

परीक्षा मंच

नमूना मॉक टेस्ट

सदस्यता

एनसीईआरटी व्यायाम वीडियो समाधान

Optics Question 956

Question: An isosceles trapezium of reflecting material of refractive index 2 and dimension of sides being 5 cm, 5 cm, 10 cm and 5 cm. The angle of minimum deviation by this when light is incident from air and emerges in air is:

Options:

Answer:

Solution:

इंजीनियरिंग की तैयारी

चिकित्सा तैयारी

एनसीईआरटी पुस्तकें और समाधान

महत्वपूर्ण संसाधन

अन्य संसाधन

पाठ्यक्रम

परीक्षा मंच

नमूना मॉक टेस्ट

सदस्यता

एनसीईआरटी व्यायाम वीडियो समाधान

Menu

Question: An isosceles trapezium of reflecting material of refractive index $\sqrt{2}$ and dimension of sides being 5 cm, 5 cm, 10 cm and 5 cm. The angle of minimum deviation by this when light is incident from air and emerges in air is: