CBSE Board Students Helpline

CBSE Science - Physics Class X, Light - Reflection and Refraction NCERT solutions (Textbook Exercise Questions)   Q.1: Which of the following materials can not be used to make a lens? (a) water (b) glass (c) plastic (d) clay Ans: (d) Q.2: The image formed by a concave mirror is observed to be virtual, erect and larger than the object. Where should be the position of the object? (a)

CBSE Class IX English Communicative NCERT English Literature Reader F4. Keeping It From Harold CCE type Multiple Choice Questions (MCQ) Read the following extract and answer the following questions by choosing the most appropriate alternative from the options given below: Q.1: “Ma!” Mrs. Bramble looked up, beaming with a kind of amiable fat – headedness. A domestic creature, wrapped up in

Class 9 NCERT (CBSE) English Literature Reader (Communicative)Keeping It From Harold(NCERT solutions for Text Book Exercise Questions)Q.1: Before you read “Keeping It From Harold” the teacher will encourage you to answer or discuss the following:(a) What are the different weight categories in Boxing?(b) Have you ever heard the song whose lyrics go like … “He floats like a butterfly and stings

Chapter 4, Structure of the Atom   CBSE Board Class 9, NCERT Science (Chemistry) Solutions of Chapter Intext Questions    Q.1: What are canal rays? Q.2: If an atom contains one electron and one proton, will it carry any charge or not? Q.3: On the basis of Thomson’s model of an atom, explain how the atom is neutral as a whole. Q.4: On the basis of Rutherford’s model of an atom,

Structure of the Atom   Class IX, Chapter 4, NCERT (CBSE) Science (Chemistry) Solutions of CBSE - NCERT Science Textbook Chapter Exercise Questions Q.1: Compare the properties of electrons, protons and neutrons.   Solution: Particle Nature of charge Mass Location Electron Negative (–1) or (–1.6 x 10–19 C) 9 x 10–31 kg Extra nuclear part

Class X, NCERT (CBSE) Social Science Economics Understanding Economic Development Chapter 3, Money and Credit Sample and Intext Questions - Answers Question.1: What is money ?  Answer: Money is a medium of exchange and measure of value.  Question.2: What are the different kinds/types/forms of money ?  Answer: Money can be classified into the following types or forms: (i)