WBJEE-JENPAS-UG SERIES Physics
Work Energy And Power
6 previous year questions.
Volume: 6 Ques
Yield: Medium
High-Yield Trend
3
2023 3
2022 Chapter Questions 6 MCQs
01
PYQ 2022
medium
physics ID: wbjee-je
The energy level of a certain atom for 1st 2nd and 3rd levels are 2E, respectively. If A and A be the wavelengths of emitted photon for 3ā1 and 2 ā1 transition respectively, then is
1
2
2
1
3
4
3
02
PYQ 2022
medium
physics ID: wbjee-je
represents a moving pulse where x and y are in metre and t is in second. Then
1
The pulse is moving in positive x direction
2
Speed of the pulse is 0.5 m/s
3
Maximum displacement of the pulse is 1.6 m
4
After 2 sec, the separation between two consecutive points having same phase is 0.5m.
03
PYQ 2022
medium
physics ID: wbjee-je
The second overtone of an open organ pipe has the same frequency as the first overtone of a closed pipe of length L. The length of the open pipe will be
1
2L
2
3
L
4
4L
04
PYQ 2023
hard
physics ID: wbjee-je
When a spring is stretched by x amount, the potential energy stored in it is E. When the spring is stretched by another x amount, the potential energy stored in the spring becomes E'. Then is,
1
1
2
1/2
3
1/4
4
4
05
PYQ 2023
medium
physics ID: wbjee-je
Two different coils have self-inductances Lā = 8 mH and L2 = 2 mH. Currents in both coils are increased at a same constant rate. Also, at a certain instant, the powers given to the two coils are same. If I1, V1, U1 and I2, V2, U2 represent the current, the induced voltage and the energy stored in the first coil and in the second coil respectively at any particular instant, then which of the following is/are correct?
1
2
3
4
VI is constant
06
PYQ 2023
medium
physics ID: wbjee-je
An electron of mass m and a photon have same energy E. If their de Broglie wavelengths are and , respectively, then is proportional to,
1
E
2
3
4
independent of E
About Work Energy And Power - WBJEE-JENPAS-UG
Work Energy And Power is a vital chapter for WBJEE-JENPAS-UG aspirants. Mastering the concepts covered in this chapter is essential for securing a top rank.
By rigorously practicing the previous year questions associated with this chapter, you can identify high-yield topics, understand the examiner's perspective, and boost your confidence during the actual exam.
Frequently Asked Questions
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Analyzing PYQs for this specific chapter reveals the most frequently tested concepts and the typical complexity of questions, allowing you to tailor your study plan efficiently.
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Review the topic breakdown to see which sub-topics within Work Energy And Power carry the most weight. Then, tackle the questions iteratively to solidify your understanding.