NEET 2020 Exam Paper (180 Q) - Mock Test

Taking into account of the significant figures, what is the value of $9.99\text{m}-0.0099\text{m}$?

A ball is thrown vertically downward with a velocity of $20\text{m/s}$ from the top of a tower. It hits the ground after some time with a velocity of $80\text{m/s}$. The height of the tower is: ($g=10{\text{m/s}}^2$)

A capillary tube of radius $r$ is immersed in water and water rises in it to a height $h$. The mass of the water in the capillary is $5\text{g}$. Another capillary tube of radius $2r$ is immersed in water. The mass of water that will rise in this tube is:

A resistance wire connected in the left gap of a metre bridge balances a $10\Omega$ resistance in the right gap at a point which divides the bridge wire in the ratio $3:2$. If the length of the resistance wire is $1.5\text{m}$, then the length of $1\Omega$ of the resistance wire is:

For the logic circuit shown (two NAND gates), the truth table is: