Question

Spamming is not allowed. If it will be done, then the answer will be reported. Please tell the answer from the options only. Just 4th question​

Answer 1

Explanation:

3) a- frequency

4)d- s= ut-1/2at²

Answer 2

Answer :

3) Number of oscillations per unit time is called as Frequency. [Option A]

• We know that Time period is the time taken to complete a vibration.

• Wavelength is the distance between two successive crest and trough.

• Amplitude is the number of molecules that gets displaced due to a vibration.

• And hence our answer is Frequency

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4) s = ut - ½at² is not an equation if motion.

• The three Equations of motion are,

1. v = u + at [First Equation of Motion] Here it's given as v-u = at
2. s = ut + ½at² [Second Equation of Motion] Here it's given as s-ut = ½at²
3. v²-u² = 2as [Third Equation of Motion]

• Hence the Answer is Option D