Chap 14 अर्धचालक इलेक्ट्रोनिकी, 12th Physics

यूपी बोर्ड ने जारी किया Class 12th Physics का नया Syllabus

12th Chemistry महत्वपूर्ण प्रश्नों का महा-संग्राम | 12th Chemistry Most Important Objective Question

Class 12th Physics | Easy & Hard Most Important Chapters

The average of 24 numbers is 65. The average of first 11 numbers is 67 and the average of last 10 numbers is 70. If the 12th number is 13 less than the 13th number and the 14th number is one more than the 13th number, then the average of 12th and 14th number is: 24 संख्याओं का औसत 65 है | पहली 11 संख्याओं का औसत 67 है तथा अंतिम 10 संख्याओं का औसत 70 है| यदि 12वीं संख्या 13वीं संख्या से 13 कम है तथा 14वीं संख्या 13वीं संख्या से एक अधिक है, तो 12वीं और 14वीं संख्या का औसत ज्ञात करें |

The two isotopes of carbon, C-12 and C-14, possess the same physical properties .

Every fourth letter from left to right of the English alphabet is dropped. Find 7th, 12th, 17th, 25th and 8th letters from the left of the new series obtained.

If the 4th term of an A.P. is 12 and 12th term is 60, then the first term is