Question

model for RRR mantra

Answer 1

Ther are 4R principles which were aimed to save the environment from pollution.They are,
R-Reuse
R-Recycle
R-Reduce
R-Restore

Answer 2

Answer:

Explanation:

LAWS OF REFLECTION OF LIGHT

❥The incedent, the normal and the reflected Ray lie in same plane.

❥ < I = < R , Angle of incedent = Angle of reflection.

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