Consider the following statements: 1. Kaziranga

Two capacitors of 6 µF and 3 µF are connected in series and a potential difference of 90 V is applied. The energy stored in the system is:

Which physical quantity is conserved in a collision (in the absence of external forces)?  

What term refers to the superposition of two or more coherent waves to produce regions of maxima and minima?

Which device is best suited for measuring the temperature inside metallurgical furnaces?

Which of the following materials is used for the generation of ultrasonic waves by using magnetostriction effect?

What is the speed of sound in air at room temperature (approx)?  

A car accelerates from 20 m/s to 40 m/s in 10 seconds. What is its acceleration?

What is the function of a fuse in an electric circuit?  

What type of rays are used in a CT scan to visualize the internal structures of the human body?

A body of mass 2 kg is moving with velocity 3 m/s. What is its kinetic energy?