SaraNextGen Study App [2023-24]
Last Updated On 01-06-2023 - By Jeesha Sara

A beam of natural light falls on a system of 5 polaroids, which are arranged in succession such that the pass axis of each polaroid is turned through  with respect to the preceding one. The fraction of the incident light intensity that passes through the system is

a)

b)

c)

d)


Question ID - 150213 :-

A beam of natural light falls on a system of 5 polaroids, which are arranged in succession such that the pass axis of each polaroid is turned through  with respect to the preceding one. The fraction of the incident light intensity that passes through the system is

a)

b)

c)

d)

1 Answer
5876 Votes
3537

Answer Key : (d) -

(d)

Let  be the intensity of incident light

Then the intensity of light from the  polaroid is

Intensity of light from the 2nd polaroid is

Intensity of light from the 3rd polaroid is

Intensity of light from the 4th polaroid is

Intensity of light from the 5th polaroid is

Therefore, the fraction of the incident light that passes through the system is



Next Question :

The figure here gives the electric field of an EM wave at a certain point and a certain instant. The wave is transporting energy in the negative  direction. What is the direction of the magnetic field of the wave at that point and instant

a)

Towards +  direction

b)

Towards  direction

c)

Towards +  direction

d)

Towards  direction


View Topper Answer

We hope we have given the updated helpful answer / content for your query in an easily accessible format to help you in preparing adequately. We do offer free support materials, 10th maths guide, 10th science guide, 10th tamil guide, 10th social guide, 10th english guide, science 10th guide and also for all the classes books and guide to all the students who sign up for SaraNextGen. Apart from traditional textbook queries, we've got conjointly provided further high order level thinking issues, that are seemingly to be expected in boards and competitive exams. It includes conceptual queries, MCQs, Long and short answer type queries, etc. These Questions are designed to learn each student and academics by providing chapter-wise further issues focusing totally on testing conceptual information with applications. Here, we've got provided a number of the necessary ways in which within which the solutions of all the Questions will profit students of class 1 to 12. If you have any queries, drop a message to us and we will get back to you at the earliest.


SaraNextGen