Questions

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

What is organic matter in soil is also called

The data collected from which one of the following methods is not a primary data?

X-Rays, which are now used on a day to day basis for diagnosis in medicine, was discovered by?

Who among the following became the first tourist to space by spending $20 million for 8 days in orbit?

Who was appointed as the head of the Jury of the International Film Festival of India in November 2015?

Read each sentence to find out whether there is any error in any underlined part and indicate your response in the Answer Sheet against the corresponding letter i.e., (a) or (b) or (c). If you find no error, your response should be indicated as (d).

In the following question, the sentence given with blank to be filled in with an appropriate word. Select the correct alternative out of the four and indicate it by selecting the appropriate option.

Aryabhatta was the first astronomer to state ______ that the earth is round and it rotates on its axis.