Polarised Light Is to Have Its Polarisation Plane Rotated by 90

question 39

Multiple Choice

Polarised light is to have its polarisation plane rotated by 90 $\degree$ .In which of the following cases does the final beam have the greatest intensity?

• A)3 polarising filters, each rotate beam by 30\(\degree\).
• B)2 polarising filters, both rotate beam by 45\(\degree\).
• C)1 polarising filter, rotating beam by 90\(\degree\).
• D)None of the above, polarised light can't be rotated.

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Definitions:

Attitude Changes

Alterations in an individual's outlook, opinions, or feelings towards various aspects of their environment or themselves, often as a result of experiences or new information.

Egoism

Giving to another person to ensure reciprocity; to gain self-esteem; to present oneself as powerful, competent, or caring; or to avoid social and self-censure for failing to live up to society’s expectations.

Altruism

A selfless concern for the well-being of others without expectation of reward or recognition.

Personal Gain

Pursuing actions or decisions primarily for self-benefit or personal advantage.