MCQ
Wave which cannot travel in vacuum is
- A$X$$-$ rays
- ✓Infrasonic
- CUltraviolet
- DRadiowaves
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Assertion $A$ : When a body is projected at an angle $45^{\circ}$, it's range is maximum.
Reason $R$ : For maximum range, the value of $\sin 2 \theta$ should be equal to one.
In the light of the above statements, choose the correct answer from the options given below :