Question Text
Question 6 :
A force exerts a pressure of $45 N/m^{2}$ when it acts on an area of $10 m^{2}$. Calculate the total force
Question 8 :
The pressure at the bottom of a tank containing a liquid does not depend on<br><b>[CBSE PMT 1994] [Kerala (Engg.)2002]</b><br>
Question 10 :
Which one of the following is the fifth planet from the sun ?
Question 11 :
Which of the following is a "Fire and Forget" anti tank missile?
Question 13 :
When a light ray falls on a perfectly reflective mirror at an angle. Identify which of the following statement is true about the ray?
Question 14 :
Which of the following is not an example of dispersion of light?
Question 16 :
The sound from a mosquito is produced when it vibrates its wings at an average rate of $500$ vibrations per second. What is the time period of the vibration?
Question 17 :
Some whistles are designed to produce waves that can attract the attention of dogs but humans do not notice these waves. What kind of waves are these?
Question 19 :
A toy car released with the same initial speed will travel farthest on:<br/>
Question 20 :
The interlocking of the depressions and elevations (irregularities) present on the surfaces <span>of the bodies in contact cause friction.</span>