List of top Questions asked in MET- 2010

A glass flask having mass 390 g and an interior volume of 500 $cm³$ floats on water when it is less than half filled with water. The density of material of the flask is
A freshly prepared radioactive source of half-life 2 h emits radiation of intensity which is 64 times the permissible safe level. Calculate the minimum time after which it would be possible to work safely with this source.
When the wavelength of sound changes from 1 m to 1.01 m, the number of beats heard are 4. The velocity of sound is
At what height h above earth, the value of g becomes g/2? (R = Radius of earth)
A sounding source of frequency 500 Hz moves towards a stationary observer with a velocity 30 m/s. If the velocity of sound in air is 330 m/s find the frequency heard by the observer.
Fundamental frequency of an open pipe is $fₒ$. Fundamental frequency when it is half filled with water is
A battery of emf 10 V is connected to resistance as shown in figure. The potential difference $VA-VB$ between the points A and B is
Solar radiation is
If the rms velocity of a gas is v, then
A transistor is working in common emitter mode. Its amplification factor ($β$) is 80. If the base current is 250 $μ A$, the collector current will be
In the electrical network shown in the figure, the potential difference across 3 $Ω$ resistance will be
From an inclined plane two particles are projected with same speed at same angle $θ$, one up and other down the plane as shown in figure, which of the following statements is/are correct?
Surface tension vanishes at
In the figure shown, the magnetic field induction at the point O will be
Three identical thermal conductors are connected as shown in figure. Considering no heat loss due to radiation, temperature at the junction will be
r
Which of the following inhibits protein synthesis by binding to $ 50\,S $ ribosome?
If the total amount of adenine and thymine in a double-stranded DNA is $45\%$, the amount of guanine in this DNA will be