The fraction of tritium remains undecayed after 25 years, if its half life is 12.5 years will be:

Which of the following shows the correct relation between electric Intensity \(E\), and electric potential \(V\) :

A charge of \( 9 \mu C \) is given a displacement of \( \vec{r} = (4\hat{i} + 5\hat{j}) \text{ m} \) in an electric field \( \vec{E} = (5\hat{i} + 4\hat{j}) \text{ N/C} \). The work done in the process is

In Young's double slits experiment, the fringe width is found to be 0.2 mm for air medium. If the whole apparatus is immersed in water of refractive index 4/3 the new fringe width will be:

If the total energy is transferred by the electromagnetic waves on a surface be \(U\) in time \(t\), then the total momentum delivered to the surface is

The ratio of the intensity of unpolarised incident light and polarised emergent light is :

A resistor develops 800 J of thermal energy in 20 s on applying a potential difference of 20 V. Its resistance is

The matrix \(A=\left[\begin{array}{lll}0 & 0 & 5 \\ 0 & 5 & 0 \\ 5 & 0 & 0\end{array}\right]\) is a :
(A) Diagonal matrix
(B) Scalar matrix
(C) Square matrix
(D) Symmetric matrix
Choose the correct answer from the options given below :

Read the paragraph and answer the question.
Broadly, genetic disorders may be grouped into two categories - Mendelian disorders and Chromosomal disorders. Mendelian disorders are mainly determined by alteration or mutation in the single gene. These disorders are transmitted to the offspring on the same lines as we have studied in the principle of inheritance. The trait may also be linked to the sex chromosome as in case of haemophilia. It is evident that this X-linked recessive trait shows transmission from carrier female of male progeny.
The disease which is transmitted to the offsprings following the principles of inheritance is :

Match List - I with List - II.

List – I	List – II
(A) Glycosidic linkage	(I) Monomeric units of nucleic acid
(B) Peptide linkage	(II) Sugar-heterocyclic base combination
(C) Nucleotide	(III) Linkage between two amino acid units
(D) Nucleoside	(IV) Linkage between two mono saccharide units

Choose the correct answer from the options given below :

If \(x=t^4, y=t\), then \(\frac{d^2 y}{d x^2}\) is given by ______________

Clot buster produced from Streptococcus is:

Choose the correct statements from the following:
A. Displacement current is due to time varying magnetic field.
B. The frequency of the electromagnetic wave naturally equals the frequency of oscillation of the charge.
C. Light carries energy from the Sun to the Earth.
D. Electromagnetic wave does not exert pressure.
E. Electromagnetic wave contains both electric and magnetic field.
Choose the correct answer from the options given below: