NEET Test 73...

Which of the following statements is correct?

a. rRNA is the most abundant RNA.

b. Ribosomes are composed of approximately 80% rRNA and 20% ribosomal proteins.

c. rRNA is a type of coding RNA.

A double-slit apparatus is immersed in a liquid of refractive index 1.33. It has slit separation of 1mm and distance between the plane of slits and the screen is 1.33m. The slits are illuminated by a parallel beam of light whose wavelength in air is  What is the fringe width?

For the reaction, 2Cl(g) → Cl₂(g), the correct option is:

If the electron in the hydrogen atom jumps from the third orbit to the second orbit, the wavelength of the emitted radiation in term of Rydberg constant is:

Identify a molecule that does not exist.

When radiation is incident on an optical electron emitter, the resistive potential 9 V is obtained. If the value of e/m for the electron is 1.8 ×10¹¹Ckg⁻¹, the maximum velocity of the emitted electrons is

Two spherical conductors B and C having equal radii and carrying equal charges, repel each other with force F when kept apart at some distance. A third spherical conductor having the same radius as that of B, but uncharged, is brought in contact with B, then with C and finally removed away from both. The new force of repulsion between B and C is

A particle executing simple harmonic motion of amplitude 5 cm has a maximum speed of 31.4 cm/s. The frequency of its oscillation is:

RNA which carry amino acid from the cytoplasm to the ribosome is:

An object of mass 40kg having velocity 4m/s collides with another object of mass 60kg having velocity 2m/s. The collision is perfectly inelastic. The loss in energy is: