Match List-I with List-II: List-I: (A) S.I. unit of power of a lens, (B) S.I. unit of electric potential difference, (C) Potential difference between two points, (D) S.I. unit of electric charge List-II: (1) V, (2) Coulomb, (3) Diopter, (4) W/Q Choose the correct answer:
Question:
Match List-I with List-II: List-I: (A) S.I. unit of power of a lens, (B) S.I. unit of electric potential difference, (C) Potential difference between two points, (D) S.I. unit of electric charge List-II: (1) V, (2) Coulomb, (3) Diopter, (4) W/Q Choose the correct answer:
Match List-I with List-II: List-I: (A) S.I. unit of power of a lens, (B) S.I. unit of electric potential difference, (C) Potential difference between two points, (D) S.I. unit of electric charge List-II: (1) V, (2) Coulomb, (3) Diopter, (4) W/Q Choose the correct answer:
Options
Answer: (4) A-3, B-1, C-4, D-2
Explanation:
S.I. unit of power of a lens (A) is the Diopter (D) — defined as the reciprocal of focal length in metres; a lens of 1 metre focal length has power of 1 diopter (3). S.I. unit of electric potential difference (B) is the Volt (V) (1). Potential difference between two points (C) is defined as Work done (W) per unit charge (Q), i.e., V = W/Q (4). S.I. unit of electric charge (D) is the Coulomb (C) (2). Hence correct match: A-3, B-1, C-4, D-2.
Explanation:
S.I. unit of power of a lens (A) is the Diopter (D) — defined as the reciprocal of focal length in metres; a lens of 1 metre focal length has power of 1 diopter (3). S.I. unit of electric potential difference (B) is the Volt (V) (1). Potential difference between two points (C) is defined as Work done (W) per unit charge (Q), i.e., V = W/Q (4). S.I. unit of electric charge (D) is the Coulomb (C) (2). Hence correct match: A-3, B-1, C-4, D-2.
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