Match List-I with List-II for convex lens (symbols have their usual meanings)

List-I (Frequency Range)	List-II (EM Waves)
(A) \(4 \times 10^{14} Hz-7.5 \times 10^{14} Hz\)	(l) Infrared rays
(B) \(3 \times 10^{17} Hz-3 \times 10^{20} Hz\)	(II) Microwaves
(C) \(3 \times 10^9 Hz-3 \times 10^{11} Hz\)	(III) Visible Light
(D)\(3 \times 10^{11} Hz-4 \times 10^{14} Hz\)	(IV) X-rays

Choose the correct answer from the options given below :

A conductor of length ' \(L\) ' is connected to a battery of emf ' \(E\) '. The drift velocity of electron in the conductor is ' \(v_d^{\prime}\). The drift velocity of electron in the conductor on stretching it four times, to length 4 L keeping emf ' \(E\) ' constant will be :

Read the following statements related to telescopes carefully:
(A) The main considerations of an astronomical telescope are its light gathering power and its resolution.
(B) the ability to observe two objects (very nearly in the same direction) distinctly depends on the diameter of the objective
(C) large-sized lenses which form images that are free from any kind of chromatic aberration and distortions can be made easily
(D) Telescopes with mirror objectives are free from chromatic aberration
Choose the correct answer from the options given below:

A uniformly charged sphere of \( 80 \text{ } \mu\text{C} \) and radius 2 cm is placed in air.
The electric field intensity at a point 20 cm from the center of the sphere is:

Identify the incorrect statement(s) among the following:
when a dielectric medium is introduced between the plates of a charged capacitor:
(A) If a plate of dielectric constant k, thickness t is placed between the plates of a charged capacitor of area A and distance d, then the new capacitance will be \( \frac{A\varepsilon_0}{d - t(1 - 1/k)} \)
(B) The electric field between plates of the charged capacitor when the dielectric is introduced will be \( E = (E_0 - E_p) \)
(C) Dielectric constant of the dielectric placed between plates of charged capacitor will be \( k = \frac{E_0}{E_0 - E_p} \)
(D) Dielectric strength of the dielectric is the maximum value of the electric field which may be applied before its breakdown.
Choose the correct answer from the options given below :

If a match box of size \( 5 \text{ cm} \times 4 \text{ cm} \times 1 \text{ cm} \) is filled with nuclear matter, what will be its expected mass? The density of nuclear matter is approximately \( 2.3 \times 10^{17} \text{ kg/m}^3 \).

A diode having potential difference 0.5 V across its junction which does not depend on current, is connected in series with a resistance of \( 20 \Omega \) across a source. If 0.1 A current passes through the resistor, the voltage across the source is :

Match List I with List II

LIST I	LIST II
A. Transforming Principle	I. Jacob and Monod
B. Replication of DNA	II. Frederick Griffith
C. Lac operon concept	III. Alec Jeffreys
D. DNA Fingerprinting	IV. Watson and Crick

Choose the correct answer from the options given below:

Which one of the following is not associated with the process of transcription in bacteria?

A cell of e.m.f 4V and internal resistance \(0.2 \Omega\) is connected to \(1.8 \Omega\) external resistance. The potential difference across the terminal of the cell will be:

Taq polymerase is isolated from:

Which of the following equation correctly describes 'Net primary productivity'?

Match List I with List II.

List I (Example)	List II (Name of Interaction)
A. Sea anemone and clown fish	I. Competition
B. Lichens	II. Commensalism
C. Lice and Human	III. Mutualism
D. Flamingoes and resident fishes in South American lakes	IV. Parasitism

Choose the correct answer from the options given below: