Questions

A Sonar of a ship sends sounds waves of speed 1500 m/s. These waves are reflected back by the ocean floor in 5 seconds. Find the depth (in m) of the ocean floor.

What is the heat generated (in J) in a heating element of resistance 1000 Ω when a current of 0.1 A passes through it for 25 seconds?

Who is the author of Manimekalai?

Who Invented Universal Standard Time?

Which Chief Minister was awarded for the prestigious Global Agriculture Leadership Award 2017 by the Indian Council of Food and Agriculture(ICFA)?

The following pie-­chart shows the study­ time of different subjects of a student in a day . Study the pie chart and answer the following questions.

Instead of 10% , if the student spends 15% to study other subjects and the time is taken from the time scheduled to study mathematics and if he/ she used to study 20 hours per day , then the difference of time for studying mathematics per day is

Who is the author of "Jaya"?

In the following question, four words are given out of which one word is correctly spelt. Select the correctly spelt word.