List of top Questions asked in JIPMER

The major excretory product of arthropods is
In bacteria, site of respiration is
Bacterial ribosomes are present
Cork cambium results in the formation of cork which become impermeable to water due to the accumulation of
Which of the following is not a characteristic feature of all the chordates ?
An isosceles prism of angle 120? has a refractive index of 1.44. Two parallel monochromatic rays enter the prism parallel to each other in air as shown. The rays emerging from the opposite faces
A string in a musical instrument is $50\, cm$ long and its fundamental frequency is $800\, Hz$. If a frequency of $1000\, Hz$ is to be produced, then required length of string is
A series resonant $LCR$ circuit has a quality factor ($Q$-factor) 0.4. If $R = 2\, k\Omega, C = 0.1 \, \mu F$, then the value of inductance is
A ray of light is incident at an angle of 60? on one face of a prism of angle 30?. The emergent ray of light makes an angle of 30? with incident ray. The angle made by emergent ray with second face of prism be
A plane mirror produces a magnification of
A galvanometer having a resistance $ 12\, \Omega$ gives a full scale deflection for a current of 2.5 mA. It is converted into a voltmeter of range 10 V, what is the net resistance of the meter?
A circular coil of radius $2R$ is carrying current $I$. The ratio of magnetic fields at the centre of coil and at a point at a distance $6R$ from centre of coil on axis of coil is
A red flower kept in green light will appear
The half-life of a ratio-isotope is 4 h. If initial mass of the isotope was 200 g, then mass remaining after 24 h will be
If $^{}_{92}U^{206}$ emits 8 $\alpha$-particles and 6 $\beta$-particles, then the resulting nucleus is
A uniform wire of resistance R and length L is cut into four equal parts, each of length $L/4$, which are then connected in parallel combination. The effective resistance of the combination will be
A body cools from 50?C to 49?C in 5 seconds. How long will it take to cool from 40?C to 39?C? (Assume temperature of surrounding to be 30?C and Newton?s law of cooling is valid).
In plants, water supply is due to
Which of the following is correct?
A block $B$ is pushed momentarily along a horizontal surface with an initial velocity $v$ . If $\mu$ is the coefficient of sliding friction between $B$ and the surface, block $B$ will come to rest after a time
In a mass spectrometer used for measuring the masses of ions, the ions are initially accelerated by an electric potential $V$ and then made to describe semicircular paths of radius $R$ using a magnetic field $B$. If $V$ and $B$ are kept constant, the ratio $\left(\frac{\text { charge on the ion }}{\text { mass of the ion }}\right)$ will be proportional to
The frequency of a light wave in a material is $2 \times 10^{14} Hz$ and wavelength is $5000\, ?$. The refractive index of material will be
Two radioactive substances $A$ and $B$ have decay constants $5\, \lambda$ and $\lambda$ respectively. At $t=0$ they have the same number of nuclei. The ratio of number of nuclei of $A$ to those of $B$ will be $\left(\frac{1}{e}\right)^{2}$ after a time interval
In an oxidation-reduction reaction, $MnO _{4}^{-}$ion is converted to $Mn ^{2+}$. What is the number of equivalents of $KMnO _{4}$ (mol. wt. $=158$ ) present in $250\, mL$ of $0.04\, M\, KMnO _{4}$ solution ?
DNA multiplication is called