Question Text
Question 1 :
If a car moves with a uniform speed of 2 ms-1 in a circle of radius 0.4. Its angular speed is______________
Question 2 :
A capacitor of capacitance 30F is charged by a constant current of 10mA. If initially, the capacitor was uncharged what is the time taken for the potential difference across the capacitor to reach 300V
Question 5 :
A chimney works best if air exposed to the chimney is______________
Question 6 :
When light incident normally on thin film the path difference depends upon ________________
Question 8 :
The profile of aeroplane wing which lifts it up is called as_____________
Question 11 :
For confinement of electron in a box of radius 10-14m the electron, speed should be_____________
Question 12 :
The distance covered by a body in one complete vibration is 20cm. What is the amplitude of body ___________________
Question 15 :
Which of the following will be a better shield against gamma rays
Question 18 :
The velocity of a particle of mass m of de-Broglie wavelength is______________
Question 19 :
Any alteration produced in shapes length or volume when a body is subjected to some external force is called____________________