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The density of nucleus is about 2.3×10^17 kgm-3 and all nucleus have approximately same density. Reason The density of nucleus is independent of mass present in it. (a) Assertion is correct but Reason is wrong (b) Assertion is wrong but Reason is correct (c) Both Assertion and Reason are correct but Reason is not the correct explanation of Assertion (d) Both Assertion and Reason are correct and Reason is the correct explanation of Assertion

Option (c) Both Assertion and Reason are correct but Reason is not the correct explanation of Assertion.... View Article

Nocturnal periodicity is exhibited by (a) Rhabditiform larva (b) Microfilaria (c) Ascarsis (d) Yersinia

Option (b) Microfilaria.... View Article

9x+3y+12=0 18x+6y+24=0

From the equation, a1=9 b1=3 c1=12 a2=18 b2=6 c2=24 a1/a2=9/18=1/2 b1/b2=3/6=1/2 c1/c2=12/24=1/2 Therefore, a1/a2=b1/b2=c1/c2... View Article

Which electronic level would allow the hydrogen atom to absorb a photon but not to emit it?

1s electronic level would allow the hydrogen atom to absorb a photon but not to emit it.... View Article

What is meant by term ‘critical angle’? How is it related to the refractive index of the medium?

When the angle of incidence in the denser medium corresponding to which the angle of refraction in rarer medium is 90 degree it is known as... View Article

Which one of the following process will produce hard water (a) Saturation of water with CaSO4 (b) Addition of Na2SO4 to water (c) Saturation of water with CaCO3 (d) Saturation of water with MgCO3

Option (a) Saturation of water with CaSO4 will result in hardwater.... View Article

Consider a long solenoid that has length L, average diameter D and n layer of turns. Each layer contains N turns. If current flowing through the solenoid is i the value of magnetic field at the centre : (a) Does not depend on D (b) Proportional to L (c) Proportional to D (d) Inversly Proportional to 2D

Option (a) Does not depend on D.... View Article

Which of the following has no skeleton (a) Jelly fish (b) Lizard (c) Moth (d) Butterfly

Option (a) Jelly fish.... View Article

De-broglie wavelength of a neutron at 927 degree Celsius is lambda. what will be its wavelength at 27-degree Celsius?

Answer: ⇒ ⇒ ⇒ ⇒ λ2 = λ/2 ... View Article

Arranging data in a specific order is called (a) Verification (b) Sorting (c) Merging (d) Classification

Option (b) Sorting.... View Article

Active uptake of minerals by root mainly depends on the (a) Light (b) Availability of carbon dioxide (c) Availability of oxygen (d) Temperature

Option (c) Availability of oxygen.... View Article

The slope of the graph between logp and logv at constant temperature for a given (a) 1/T (b) -1 (c) 1/n (d) +1

Option (b) -1.... View Article

Which has the maximum conductivity in thier 01m solution (a) [Co(NH3)4Cl]Cl2 (b) [Co(NH3)6]Cl3 (c) [Co(NH3)3Cl3] (d) [Co(NH3)5Cl]Cl2

Option (b) [Co(NH3)6]Cl3.... View Article

An oxide of sulphur contains 50% of sulphur in it. Its empirical formula is :

For sulphur, the percentage of sulphur divided by its molar mass gives = 50/32=1.56 For oxygen, the percentage of sulphur divided by its molar... View Article

The binding energy of an electron in the ground state of an atom is equal to 24.6 eV. Find the energy required to remove both the electrons from the atom.

The binding energy of Helium atom=24.6 eV When one electron is removed from the helium atom, it becomes a single electron species. The ionization... View Article

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