Questions

In which year did Ole Romer measure the speed of light for the first time in the history?

The unit of power used in industry is

Calculate the time period (in seconds) of a sound wave of wavelength 5m travelling with a speed of 500 m/s.

Two identical resistors of 20 ohm each are connected in parallel. This combination, in turn, is connected to a 10 ohm resister. The equivalent resistance of the combination will be

The energy released at the end of digestion is in the form of

World Environment Day is observed on

Select the related word/letters/numbers from the given alternatives: 6 : 42 :: 12 : ?

In the following question, select the odd letter/letters from the given alternatives.