Reason (R): For a balanced bridge small current should flow through the galvanometer.Īnswer: (D) Assertion (A) is false and Reason (R) is also falseġ8. Assertion (A): The given figure does not show a balanced Wheatsone bridge. (D) Assertion (A) is false and Reason (R) is also false.Īnswer: (A) Both Assertion (A) and Reason (R) are true and (R) is the correct explanation of (A).ġ7. (C) Assertion (A) is true and Reason (R) is false. (B) Both Assertion (A) and Reason (R) are true and (R) is Not the correct explanation of (A) (A) Both Assertion (A) and Reason (R) are true and (R) is the correct explanation of (A). Reason (R): The number of conduction electrons as well as hole increase in an intrinsic semiconductor with rise in its temperature. Assertion (A): The resistance of an intrinsic semiconductor decreases with increase in its temperature. The radius of the nth orbit in Bohr model of hydrogen atom is proportional toġ6. (C) (i) remains constant, but (ii) increasesġ5. (B) (i) remains constant, but (ii) decreases What will be its effect on the following? In Young's double-slit experiment, the screen is moved away from the plane of the slits. Which one of the following electromagnetic radiation has the least wavelength?Ħ. A square shaped coil of side 10cm, having 100 turns is placed perpendicular to a magnetic field which is increasing at 1T/s. Which of the following cannot modify an external magnetic field as shown in the figure?Ĥ. You can check the CBSE class 12 Physics paper 2023 answer key in this article.ģ. It’ll help you get a sense of your expected exam score and unravel any errors in the question paper. However, you can check the correct and reliable answer key for the CBSE class 12 Physics paper 2023 for SET 1, 2, 3 and 4 here. The board doesn’t release the CBSE Class 12 Physics exam 2023 answer key or marking scheme for months. Why wait for others to appeal against a faulty question when you can? But to do that, you must go through the CBSE Class 12 answer key immediately. However, discussing the answers can also reveal errors in the paper itself. It’s not a recommended practice, as it can reveal errors students made and demotivate them for future exams.
One long-running after-exam habit of students is discussing the question papers among peers. Some found the paper too difficult others found it simple and direct. Millions of students took the exam, and all had different experiences. CBSE Class 12 Physics Answer Key 2023 : The Central Board of Secondary Examination (CBSE) Class 12 examinations have commenced, and the significant humanities stream exam of Physics was conducted today, March 06, 2023, from 10:30 AM to 1:30 PM.
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