Board Paper of Class 12-Science 2023 Physics Delhi(Set 1) - Solutions
Read the following instructions very carefully and follow them:
(i) This question paper comprises 35 questions. All questions are compulsory.
(ii) Question paper is divided into FIVE sections – Section A, B, C, D and E.
(ii) In section A: question number 1 to 18 are Multiple Choice (MCQ) type questions carrying 1 mark each.
(iii) In section B: question number 19 to 25 are Short Answver-1 (SA-1) type questions carrying 2 marks each.
(iv) In section - C: question number 26 to 30 are Short Answer-2 (SA-2) type questions carrying 3 marks each.
(v) In section - D: question number 31 to 33 are Long Answer (LA) type questions carrying 5 marks each.
(vii) In section - E: question number 34 and 35 are case-based questions carrying 4 marks each.
(viii) There is no overall choice. However, an internal choice has been provided in 2 questions in Section B, 2 questions in Section - C, 3 questions in Section - D and 2 questions in Section - E.
(ix) Use of calculators is NOT allowed.
h = 6.63 × 10–34 Js
e = 1.6 × 10–19 C
μo = 4π × 10–7 T m A–1
ε0 = 8.854 × 10–12 C2 N–1 m–2
= 9 × 109 N m2 C–2
Mass of electron (me) = 9.1 × 10–31 kg
Mass of neutron = 1.675 × 10–27 kg
Mass of proton = 1.673 × 10–27 kg
Avogadro’s number = 6.023 × 1023 per gram mole
Boltzmann constant = 1.38 × 10–23 JK–1