Electrostatic shielding is the phenomenon of protecting a certain region of space from :

A conducting wire of length 0.1 m and mass \( 3 \times 10^{-3} \text{ kg} \), carrying a current of 5 A is suspended freely in a horizontal direction in a uniform magnetic field. The magnitude of magnetic field perpendicular to the length of conductor is:

In the formation of a p-n junction diode, arrange the following processes in sequence.
(A) Diffusion of charge carriers
(B) Drift of charge carriers
(C) Doping
(D) Generation of electric field at the junction
Choose the correct answer from the options given below :

Match List I with List - II.

List - I	List - II
(A) X-rays	(I) Excitation of Atom
(B) UV rays	(II) Oscillating current
(C) y-rays	(III) Sudden retardation of high energy electron
(D) Radiowaves	(IV) Nuclear origin

Which of the following is/are responsible for the formation of Rainbow ?
(A) Dispersion of light
(B) Interference of light
(C) Reflection of light
(D) Refraction of light
Choose the correct answer from the options given below :

An a.c. voltage is applied to a resistor of resistance \(5 \Omega\) and an inductor having inductive reactance \(5 \Omega\) connected in series. The phase difference between the applied voltage and the current in the circuit is:

Stopping potential for photoelectrons :

\(\int \tan ^{-1} \sqrt{x} d x\) equals to : (Here \(C\) is an arbitrary constant)

The function \(f(x)=\left\{\begin{array}{cl}\frac{x^2+2 x-3}{x-1} & , x \neq 1 \\ 2 & , x=1\end{array}\right.\) is :

The electron in a hydrogen atom rises from its n = 1 state to n = 4 state by absorbing energy. The energy of the electron in the n = 1 state is -13.6 eV. How much energy is absorbed by the electron in transition?

Match List - I with List - II.

LIST I	LIST II
(A) Ribosome	(I) Replication
(B) Histone	(II) Transcription
(C) DNA polymerase	(III) Translation
(D) RNA polymerase	(IV) Nucleosome

Choose the correct answer from the options given below :

Consider the following statements :
(A) \(\int_{-a}^a f(x) d x=2 \int_0^a f(x) d x\) if \(f(-x)=-f(x)\)
(B) \(\int_a^b f(x) d x=\int_a^b f(t) d t\)
(C) \(\int_0^a f(x) d x=\int_0^a f(x-a) d x\)
(D) \(\int_a^b f(x) d x=\int_a^b f(a+b-x) d x\)
Choose the correct answer from the options given below :

Read the paragraph given below and answer the question.
Sutton and Boveri argued that the pairing and separation of a pair of chromosomes would lead to the segregation of a pair of factors they carried. Sutton united the knowledge of chromosomal segregation with Mendelian principles and called it the chromosomal theory of inheritance. Following this synthesis of ideas, experimental verification of the chromosomal theory of inheritance by Thomas Hunt Morgan and his colleagues, led to discovering the basis for the variation that sexual reproduction produced. Morgan worked with the tiny fruit files, which were found very suitable for such studies. They could be grown on simple synthetic medium in the laboratory. They complete their life cycle in a short span of time and a single mating could produce a large number of progeny flies. Also, there was a clear differentiation of the sexes the male and female flies are easily distinguishable. Also, it has many types of hereditary variations that can be seen with low power microscopes.
Which statement is incorrect with respect to Drosophila.