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In each of the following questions, a st...

In each of the following questions, a statement is given and a corresponding statement or reason is given just below it. In the statement, mark the correct answer as
Statement-I: Though light of a single frequency (monochromic light) is incident ona metal, the energies of emitted photoelectrons are different
Statement-II: The energy of electrons just after they absorb photons incident on the metal surface may be lost in collision with other atoms in the metal before the electron is ejected out of the metal.

A

Statement `I` is true,Statemetn `II` is true, statement `II` is a correct explanation of statement `I`.

B

Statement `I` is true, Statement `II` is true,Statement `II` is `NOT` a correct explanation for statement `I`.

C

Statement I is true, Statement II is false

D

Statement I is false, Statement II is true

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The correct Answer is:
A
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Statement 1: Though light of a single frequency (monochromatic light) is incident on a metal, the kinetic energies of emitted photoelectrons are not equal. Statement 2: The energy of electrons just after they absorb photons incident on metal surface may be lost in collision with other atoms in the metal before the electron is ejected out of the metal.

Some questions (Assertion-Reason Type) are given below. Each question contains Statement I (Assertion) and statement II(reason). Each question has 4 choices (a),(b),(c ) and (d) out of which only one is correct. So select the correct choise. a. Statement I is True, Statement II is True,Statement II is a correct explanation for Statement I b. Statement I is True, Statement II is True, Statement II is NOT a correct ecplanation for Statement I c. Statement I is True, Statement II is False . d. Statement I is false, Statement II is True. 2. Statement:I Though light of a single frequency (monochromatic light) is incident on a metal, the energies of emitted photoelectrons are different. Statement II: The energy of electrons just after they absorb photons incident on the metal surface may be lost in collision with other atoms in the metal before the electron is ejected out of the metal.

Assertion : Though light of a single frequency (monochromatic) is incident on a metal , the energies of emitted photoelectrons are different. Reason : The energy of electrons emitted from inside the metal surface is lost in collision with the other atoms in the metal.

In each of the following questions, a statement is given and a corresponding statement or reason is given just below it. In the statements, mark the correct answer as A proton and electron both have energy 50 Ev . Statement-I:Both have different wavelengths Statement -II: Wavelength depends on energy and not on mass.

In each of the following questions a statement of Assertion is given followed by a corresponding statement of Reason just below it of the statements mark the correct answer as Assertion(A):Powerhouse of a cell is mitochondria Reason:ATP is produced in mitochondria

In each of the following questions a statement of Assertion is given followed by a corresponding statement of Reason just below it of the statements mark the correct answer as Assertion(A): Cell wall is not found in plant cell Reason:Animal cells are covered by cell wall

In each of the following question, a statement is given and a corresponding statement or reason is given just below it. In the statement, mark the correct answer as Assertion (A) :For a fixed incident photon energy, photoelectrons have a wide range of energies ranging from zero to the maximum value K_(max) Reason (R) : Intially the electrons in the metal are at different energy level.

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