Tamil Nadu Board - Class 7

Scientific Principles question bank (Science (அறிவியல்))

Practice 377 free Tamil Nadu Board - Class 7 Science (அறிவியல்) - Scientific Principles questions with answers and step-by-step solutions.

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Q1.

Optics and Reflection: In 'Measurement and Motion', what is the law governing the reflection of light?


(A)
Angle of incidence equals angle of reflection ($\angle i = \angle r$) (Measurement and Motion)
(B)
Angle of incidence is always double
(C)
No reflection occurs
(D)
None of these
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Q2.

Human Organ Systems: What is the central role played by 'Measurement and Motion' in human physiology?


(A)
Circulation of oxygenated blood, filtration of toxins, or reflex actions (Measurement and Motion)
(B)
Producing poison
(C)
No function
(D)
None of these
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