Nuclues part 3

How many of the given cells do not possess nuclues? Companion cells Albuminous cells, Mature seve tube, Xylary fibres. Scléreids. Phloem parenchyma

There are 3 parts A,B and C in a question paper of Math's, which includes 6,7 and 8 questions respectivelty. From these parts 3,4 and 5 questions respectively are to be solved. In how many ways can a student select the questions from these parts?

When the number of nucleons in a nuclues increases the binding energy per nucleon

Which of the following statement is true regarding Bohr's model of hydrogen atom ? (I) Orbiting speed of electrons decreases as if falls to discrete orbits away from the nuclues. (II) Radii of allowed orbits of electrons are proportional to the principle quantum number. (III) Frequency with which electrons orbit around the nucleus in discrete orbits is inversely proportional to the principle quantum number. (IV) Binding froce with which the elctron is bound to the nuclues increases as it shifts to outer orbits. Selected the correct answer using the codes given below:

In the given diagram, there are two semicircular parts one having radius 'a' and another having radius '3a' as shown. If resistance of ACB part is R and resistance of ADB part is 3R. Select the correct option(s):

Fractional part of the number (3^(102))/(40) is :

The formation of O_3 in upper part of atmosphere is catalyzed by

In the adjacent figure of a typical dicot embryo, label the parts (1),(2) and (3) . State the function of each of the labelled part.

Labelled part A is the part of

One projectile moving with velocity v in space, gets burst into 2 parts of masses in the ratio 1:3 . The smaller part becomes stationary. What is the velocity of thhe other part?