Identify the correct properties of magnetic field lines.
(A) Magnetic field lines are directed from the south pole to the north pole outside the
magnet.
(B) The magnetic field lines never intersect each other.
(C) Magnetic lines always form a closed and continuous curve.
(D) If magnetic field lines are parallel, then the magnetic field must be uniform throughout.
Choose the correct answer from the options given below :

A given p-n junction is forward biased. Which of the following statements is correct?

The internal resistance of primary cell is \( 3 \Omega \). It generates a current of \( 0.3 \text{ A} \) in an external resistance of \( 22 \Omega \). The rate at which chemical energy is consumed in providing the current is:

The photoelectric current is directly proportional to the number of photo electrons emitted per second. This implies that

In Faraday's experiment on Electromagnetic Induction, in which of the following situations, more deflection will be shown by the galvanometer?

A ray of light incident at 25° on one refracting surface of a prism of angle 60° suffers a deviation of 50°. What will be the angle of emergence?

Under which of the following conditions the power delivered by the source of circuit will be maximum

The solution of a LPP with basic feasible solutions (0,0), (10,0), (0,20), (10, 15) and objective function Max Z = 2x + 3y is:

Read the passage carefully and answer the questions
Carbohydrates are naturally formed organic compounds from various plants. The common chemical formula, \(C _x\left( H _2 O \right)_y\), was considered as hydrates of carbon to derive the various carbohydrates. For instance, the general formula for glucose ( \(C _6 H _{12} O _6\) ) easily fits into the above formula. Carbohydrates also called saccharides are classified on the basis of their behavior towards hydrolysis. Monosaccharides cannot be hydrolyzed further to simpler units of polyhydroxy aldehyde or ketones. About 20 monosaccharides are known to occur in nature. Carbohydrates that yield large number of monosaccharide units are called polysaccharides. Amino acids contain ( \(- NH _2\) ) and ( - COOH ), which can be classified in various forms. Proteins are polymers of alpha amino acids which are connected to each other by a peptide bond or peptide linkage. When a native protein is subjected to physical change, its globules unfold and helix get uncoiled and the protein loses its biological activity. The protein is said to be denaturated.
The two monosaccharides units are joined together through which linkage ?

Which of the following is NOT em wave ?

What is the product formed when benzyl ethyl ether reacts with HI?

Which of the following statements about hormones is incorrect?

Two particles \( P_1 \) and \( P_2 \), having equal charges accelerated by the same potential difference enter a region of uniform magnetic field and describe circular paths of radii \( R_1 \) and \( R_2 \), respectively. The ratio of the mass of \( P_1 \) to that of \( P_2 \) will be