A. Stationary
B. In motion
C. Dipper
D. Ripple

Correct Answer:

Option A – Stationary

Explanation

Stroboscope is a scientific instrument used to make a wave appears stationary when used

SEE ALSO  Uranium of atom number 92 and mass number 238 emits an alpha particle from its nucleus. The new nucleus formed has respectively, atomic number and mass number.

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