Day 217: JEE Mains Physics
5 questions. Try each one first, then open its answer.
Question 1
Current Electricity. Asked once: 25 Jul 2022 (same type asked 3 times) See all 3 of this type
115In a potentiometer arrangement, a cell of emf gives a balance point at length of wire. This cell is now replaced by another cell of emf . The difference in balancing length of potentiometer wire in above conditions will be .Question 2
Electromagnetic Waves. Asked once: 29 Jul 2022 (same type asked 3 times) See all 3 of this type
15Match List - I with List - IIChoose the correct answer from the options given below:List - I List - II (A) UV rays (i) Diagnostic tool in medicine (B) X-rays (ii) Water purification (C) Microwave (iii) Communication, Radar (D) Infrared wave (iv) Improving visibility in foggy days Tap an option to check your answer.
Question 3
Laws of Motion. Asked once: 27 Jul 2022 (same type asked 3 times) See all 3 of this type
4A bag is gently dropped on a conveyor belt moving at a speed of . The coefficient of friction between the conveyor belt and bag is 0.4 Initially, the bag slips on the belt before it stops due to friction. The distance travelled by the bag on the belt during slipping motion is: [Take ]Tap an option to check your answer.
Question 4
Nuclei. Asked once: 29 Jun 2022 (same type asked 3 times) See all 3 of this type
95In the following nuclear reaction,Mass number of is 182 and atomic number is 74. Mass number and atomic number of respectively will beTap an option to check your answer.
Question 5
Semiconductor Electronics. Asked once: 24 Jan 2023 (same type asked 3 times) See all 3 of this type
20Given below are two statements: one is labelled as Assertion and the other is labelled as Reason Assertion A: Photodiodes are preferably operated in reverse bias condition for light intensity measurement. Reason: The current in the forward bias is more than the current in the reverse bias for a junction diode. In the light of the above statements, choose the correct answer from the options given below:Tap an option to check your answer.