The radius of curvature of the path of a charged particle in a uniform magnetic field is directly proportional to the

Identify the electromagnetic waves as per their following use/ applications.
(A) \( \lambda_1 \) is used to produce heating effect
(B) \( \lambda_2 \) is used in satellite communication
(C) \( \lambda_3 \) is absorbed by the ozone layer
(D) \( \lambda_4 \) is used for studying crystal structure
Choose the correct answer from the options given below:

A radioactive material with half life of 6.25 years undergoes beta decay. How much fraction of material is decayed after 25 years:

A series combination of two capacitors \( C_1 = 3 \, \mu\text{F} \) and \( C_2 = 6 \, \mu\text{F} \) is connected in parallel with a third capacitor \( C_3 = 4 \, \mu\text{F} \). This system is connected to a 10 V battery. The total energy stored in the system is:

The meter bridge is a device

Dimensional formula of Planck constant is:

Match List-I with List-II

List-I	List-II
(A) Rutherford	(I) Nuclear model of atom
(B) A.H. Becquerel	(II) Plum-Pudding Model of atom
(C) Niels Bohr	(III) Radioactivity
(D) J.J. Thomson	(IV) Hydrogen atom model

Choose the correct answer from the options given below :

Copying genetic information from one strand of DNA into mRNA is:

The correct IUPAC name of tert-butyl benzyl ether is-

The number of individuals in the reproductive age group is more than the number of individuals in the pre-reproductive age group, the shape of its age pyramid would reflect the growth status of the population as:

When a light of wavelength 150 nm is incident on silver surface a potential of 3.58 V is required to stop the photoelectrons from reaching the collector plate. Find the potential required to stop photoelectrons when a light of wavelength 200 nm is incident on it ?
(Work function of silver is 4.7 eV)

Read the passage carefully and answer the given questions. DNA Fingerprinting
Polymorphism in DNA sequence is the basis of genetic mapping of the human genome as well as of DNA fingerprinting. DNA fingerprinting involves identification of differences in some specific regions in the DNA sequence called repetitive DNA. It works on the principle of polymorphisms in DNA sequences. The repetitive DNA are separated from bulk genomic DNA. The bulk DNA forms a major peak and the other small peaks are referred to as satellite DNA. These repetitive/satellite DNA sequences show a high degree of polymorphisms and form the basis of DNA fingerprinting.
One of the most frequently used techniques in DNA fingerprinting is

In an unbiased p-n junction, holes diffuse from the p-region to n-region because