Questions

Calculate the time period (in seconds) of a sound wave of wavelength 4m traveling with a speed of 500m/s

Acceleration due to gravity on a planet decreases with ______.

 During the night, the direction of the wind would be from the __________________.

A formal language used to express information or knowledge, often for use in computer system design is?

Which of the following metal (shown by its symbol) is generally used for making filaments of bulb?

Who is the captain of the Indian men's volleyball team as of February 2018?

The manufacturer does not want to use it, the buyer does not need to use it and the user does not know he is using it. What is it?

In the following question, some part of the sentence may have errors. Find out which part of the sentence has an error and select the appropriate option. If a sentence is free from error, select 'No Error'.

The average age at which(A)/people die of heart diseases(B)/are decreasing.(C)/No error(D)