The constancy of the binding energy per nucleons in the range \( 30 < A < 170 \), where A is the mass number shows that :

A charged particle moving with a certain velocity enters a uniform electric field perpendicular to its direction. In this context, which of the following statements are correct?
(A) Force acting on the particle is constant
(B) Acceleration of the particle is constant
(C) Velocity of the particle is constant
(D) Displacement of the particle follows a parabolic path
Choose the correct answer from the options given below:

In a series RLC circuit at resonance
(A) Impedance is maximum
(B) \( X_c = X_L \)
(C) Z = R
(D) \( \omega = \frac{1}{\sqrt{LC}} \)
Choose the correct answer from the options given below:

The electric field and magnetic field of a plane electromagnetic wave propagating in vacuum are expressed as
\(E_x=E_0 \sin (k z-\omega t)\)
\(B_y=B_0 \sin (k z-\omega t)\)
Which of the following statements are correct?
(A). The wave is propagating along the z- direction.
(B). The electric field Ex and magnetic field By are perpendicular to each other and perpendicular to the z direction.
(C) The electric and magnetic fields Ex and By are perpendicular to each other, and parallel to the direction of propagation.
(D) k is related to the wave length À of the wave by the usual equation \(k = A / 2 Tt\)
Choose the correct answer from the options given below:

What is the de Broglie wavelength associated with an electron accelerated through a potential difference of 144 V?

An object of length 2.0 cm is placed at a distance of 1.5 f from a concave mirror where f is the magnitude of the focal length of the mirror. The length of the object is perpendicular to the principal axis. The length of the image will be

The refractive index of water is \( \left(\frac{4}{3}\right) \) and that of glass is \( \left(\frac{3}{2}\right) \).
If the speed of light in glass is \( 2 \times 10^8 \text{ m/s} \), the speed of light in water will be:

Which of the following base is not present in DNA?

Match List - I with List - II.

List - I	List - II
(A) Cloning vector	(I) Sea weeds
(B) β-galactosidase	(II) Selectable marker
(C) Agarose	(III) Ti-plasmid of Agrobacterium tumifaciens
(D) \(a m p^{ R }\) in pBR322	(IV) Chromogenic screening

Choose the correct answer from the options given below :

The big holes in Swiss cheese are due to:
(A) Production of large amount of \(O _2\)
(B) Production of large amount of \(CO _2\)
(C) Production of large amount of \(H _2\)
(D) Bacterium Propionibacterium sharmanii
(E) Lactobacillus casei
Choose the correct answer from the options given below:

Which property is observed in an emulsion ?

The value of the determinant \(\left|\begin{array}{ccc}a+b & b+c & c+a \\ c & a & b \\ 1 & 1 & 1\end{array}\right|\) is :

In the given circuit \( L = \frac{20}{\pi} \text{ H}, R = 2 \text{ k}\Omega \) and \( C = \frac{5}{\pi} \mu F \) are in series across a 220 V, 50 Hz ac source.

The peak voltage drop between A and B is: