Questions

Find the power of a convex lens if the image formed is at a distance of 20 cm from the lens when the object is placed on the other side of the lens at 25 cm from the optical centre?

A sound wave has a frequency of 4 kHz and a wavelength of 40 cm. The time taken by the sound wave to travel a distance of 3.2 km is

Who among the following is the executive head of state in India?

Which year has been set as goal for completing the Mumbai-Ahmedabad bullet train project operated with the help of Japan?

In April 2016, amid rising tension over North Korea, which country launched its first domestically built aircraft carrier?

What is formed when Magnesium is burnt?

In the names Mangifera indica (mango), Solanum tuberosum (potato) and Panthera leo (lion), what does the three names, indica, tuberosum and leo, represent?

Non­-Tax revenue can be increased by improving the working of ___________.