Difference Between Successful And Unsuccessful People

The phase difference between two waves from successive half period zone is

What is the phase difference between two successive crests in the wave

Of 132 examinees of a certain school,the ratio of successful to unsuccessful candidates is 9: 2.If 4 more students passed,what would have been the ratio of successful to unsuccessful students? 25:4 b.4:25 c.228:5 d.3:28

The difference between two successive odd harmonics of vibrating string is equal to

With the increase in peinciple quantum number, the energy difference between the two successive energy levels

If the difference between discount of 40% and two successive discounts of 20% on a certain article is Rs. 64, then what is the price (in Rs) of the article?

If the difference between discount of 35% and two successive discounts of 20% on a certain bill is Rs 3, then what is the amount (in Rs) of the bill?

If the difference between discount of 50% and two successive discounts of 20% on a certain bill is Rs 42, then what is the amount (in Rs) of the bill?