Physics Class 12

Physics Class 12 Chapter 1 Subjective Questions

Electric Charges and Fields What is the permittivity of a medium having dielectric constant one. Answer: We know                         ε = ε0K.Here K = 1, ε0 = 8.854 x 10-12 N-1m-2 C-2.ε = 8.854 x 10-12 x 1= 8.854 x 10-12 C2 m-2 N-1. Who first assigned the positive and negative signs to charge? Answer: Benjamin Franklin first assigned the positive and […]

Hindi 100 Marks Bseb

कड़बक पाठ का सारांश

कड़बक पाठ लेखक परिचय कड़बक पाठ के रचनाकार – मलिक मुहम्मद जायसी जायसी निर्गुण भक्ति धारा के प्रेममार्गी शाखा के प्रमुख कवि है । जन्म- जायसी का जन्म सन 1492 ई० के आसपास माना जाता है । निवास स्थान- वे उत्तर प्रदेश के जायस नामक स्थान के रहनेवाले थे । पिता- उनके पिता का नाम […]

Chemistry Class 12

Chemistry Class 12 Chapter 5

Surface Chemistry Objective Questions Which of the following is less than zero during adsorption ? (a) ΔG (b) ΔS (c) ΔH (d) All of these Ans (D) Which of the following is a property of physisorption ? (a) High specificity (b) Irreversibility (c) Non-specificity (d) None of these Ans (C) Which of the following statement […]

Chemistry Class 12

Chemistry Class 12 Chapter 4

Chemical Kinetics Objective Questions When a chemical reaction takes place, during the course of the reaction the rate of reaction (a) keeps on increasing with time (b) remains constant with time (c) keeps on decreasing with time (d) shows irregular trend with time Ans (C) The rate of disappearance of SO2in the reaction, 2SO2 + O2 → […]

Best Guess Paper For Bihar Board

Bihar Board Best Guess Paper For Class 12 यहाँ हम आपको बताएँगे की बिहार बोर्ड परीक्षा 2022 के लिए कौन सा Guess Paper अच्छा रहेगा चाहे आप Science, Commerce या Arts से हों । बिहार बोर्ड परीक्षा में कई ऐसे भी Guess Paper हैं, जिससे बिहार बोर्ड परीक्षा में काफी सारे प्रश्न मिल जाते हैं […]