CBSE Previous Year Question Papers Class 12 Physics 2012 Delhi CBSE Previous Year Question Papers Class 12 Physics 2012 Delhi Set-I Question 1. When electrons drift in a metal from lower to higher potential, does it mean that all the free electrons of t…

Important Questions for Class 12 Physics Chapter 7 Alternating Current Class 12 Important Questions Alternating Current Class 12 Important Questions Very Short Answer Type Question 1. The instantaneous current and voltage of an a.c. circuit are given by…

Important Questions for Class 12 Chemistry Chapter 10 Haloalkanes and Haloarenes Class 12 Important Questions Haloalkanes and Haloarenes Class 12 Important Questions Very Short Answer Type Question 1. A solution of KOH hydrolyses CH3CHClCH2CH3 and CH3CH…

Important Questions for Class 12 Chemistry Chapter 15 Polymers Class 12 Important Questions Polymers Class 12 Important Questions Very Short Answer Type Question 1. Give an example of elastomers. (Delhi, All India 2009) Answer: Buna-S, Buna-N. Question …

Important Questions for Class 12 Physics Chapter 11 Dual Nature of Radiation and Matter Class 12 Important Questions Dual Nature of Radiation and Matter Class 12 Important Questions Very Short Answer Type Question 1. An electron and alpha particle have …

CBSE Previous Year Question Papers Class 12 Physics 2013 Delhi CBSE Previous Year Question Papers Class 12 Physics 2013 Delhi Set-I Question 1. What are permanent magnets ? Give one example. [1] Answer : The magnets which have high retentivity and high …

Important Questions for Class 12 Chemistry Chapter 5 Surface Chemistry Class 12 Important Questions Surface Chemistry Class 12 Important Questions Very Short Answer Type Question 1. Define the term ‘Tyndall effect’. (Delhi 2009) Answer: Tyndall effect :…

CBSE Previous Year Question Papers Class 12 Physics 2017 Delhi CBSE Previous Year Question Papers Class 12 Physics 2017 Delhi Set-I Section – A Question 1. Does the charge given to a metallic sphere depend on whether it is hollow or solid ? Give reason …

Important Questions for Class 12 Physics Chapter 14 Semiconductor Electronics Materials Devices and Simple Circuits Class 12 Important Questions Semiconductor Electronics Materials Devices and Simple Circuits Class 12 Important Questions Very Short Answ…

CBSE Previous Year Question Papers Class 12 Physics 2018 Section-A Question 1. A proton and an electron travelling along parallel paths enter a region of uniform magnetic field, acting perpendicular to their paths. Which of them will move in a circular …