Download JEE-Main 2020 B.Tech 9th Jan 2020 Shift 2 Question Paper

Question Paper Name: BTECH 9th Jan 2020 Shift 2

Subject Name: BTECH

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Creation Date: 2020-01-09 18:52:48

Duration: 180

Total Marks: 300

Display Marks: Yes

Group Number: 1

Group Id: 40503627

Group Maximum Duration: 0

Group Minimum Duration: 180

Show Attended Group?: No

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Edit Attended Group?: No

Break time: 0

Group Marks: 300

Is this Group for Examiner?: No

Section: Physics

Section Id: 4056

Section Number: 1

Section type: Online

Mandatory or Optional: Mandatory

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Number of Questions: 25

Number of Questions to be attempted: 25

Section Marks: 100

Sub-Section Number: 1

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Sub-Section Id: 405036140

Question Shuffling Allowed: Yes

Question Number: 1 Question Type: MCQ Option Shuffling: Yes

Correct Marks: 4 Wrong Marks: 1

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Four sets of three measured physical quantities are given below. Which of the following options is correct?

1. A1=24.36, B1 = 0.0724, C1 = 256.2
2. A2=24.44, B2 = 16.082, C2=240.2
3. A3 = 25.2, B3 = 19.2812, C3 = 236.183
4. A4=25, B4=236.191, C4=19.5

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Note: For this question, discrepancy is found in question/answer. Full Marks is being awarded to all candidates.

Options:

1. A1 + B1 + C1 < A3 + B3 + C3 < A2 + B2 + C2 < A4 + B4 + C4
2. A1 + B1 + C1 = A2 + B2 + C2 = A3 + B3 + C3 = A4 + B4 + C4
3. A4 + B4 + C4 < A1 + B1 + C1 = A2 + B2 + C2 = A3 + B3 + C3

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4. A4 + B4 + C4 < A1 + B1 + C1 < A3 + B3 + C3 < A2 + B2 + C2

? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?

1. A1 = 24.36, B1=0.0724, C1=256.2
2. A2 = 24.44, B2=16.082, C2=240.2
3. A3=25.2, B3 = 19.2812, C3 =236.183

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4. A4=25, B4=236.191, C4=19.5

Note: For this question, discrepancy is found in question/answer. Full Marks is being awarded to all candidates.

Options:

1. A1 + B1 + C1 < A3 + B3 + C3 < A2 + B2 + C2 < A4 + B4 + C4
2. A1 + B1 + C1 = A2 + B2 + C2 = A3 + B3 + C3 = A4 + B4 + C4

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3. A4 + B4 + C4 < A1 + B1 + C1 = A2 + B2 + C2 = A3 + B3 + C3
4. A4 + B4 + C4 < A1 + B1 + C1 < A3 + B3 + C3 < A2 + B2 + C2

? ? (?) ? ? ? ? ? ? ? ? ?

1. A1 = 24.36, B1=0.0724, C1 = 256.2
2. A2=24.44, B2=16.082, C2 = 240.2

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3. A3=25.2, B3 = 19.2812, C3 = 236.183
4. A4=25, B4=236.191, C4=19.5

Note: For this question, discrepancy is found is found in question/answer. Full Marks is being awarded to all candidates.

Options:

1. A1 + B1 + C1 < A3 + B3 + C3 < A2 + B2 + C2 < A4 + B4 + C4

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2. A1 + B1 + C1 = A2 + B2 + C2 = A3 + B3 + C3 = A4 + B4 + C4
3. A4 + B4 + C4 < A1 + B1 + C1 = A2 + B2 + C2 = A3 + B3 + C3
4. A4 + B4 + C4 < A1 + B1 + C1 < A3 + B3 + C3 < A2 + B2 + C2

Question Number: 2 Question Type: MCQ Option Shuffling: Yes

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Correct Marks: 4 Wrong Marks: 1

A particle starts from the origin at t = 0 with an initial velocity of 3.0 i m/s and moves in the x-y plane with a constant acceleration (6.0 i + 4.0 j) m/s². The x-coordinate of the particle at the instant when its y-coordinate is 32 m is D meters. The value of D is:

Options:

1. 50
2. 32

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3. 60
4. 40

? ? ? t = 0 ? ? ? ? ? ? 3.0 i m/s ? ? (6.0 i + 4.0 j) m/s² ? ? ? ? ? x-y ? ? ? ? ? ? ? ? ? ? ? ? y ? ? 32 m ? x ? ? D meters ? D ? ? ? :

Options:

1. 50

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2. 32
3. 60
4. 40

t=0 ?, 3.0 i m/s ? ? ? ? ? ? (6.0i + 4.0j) m/s² ? ? ? ? ? ? ? x-y ? ? ? ?. ? ? y-? 32 m ? ? ? ? x-? D m ?. D ? ? (? ? ?) ?.

Options:

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1. 50
2. 32
3. 60
4. 40

Question Number: 3 Question Type: MCQ Option Shuffling: Yes

Correct Marks: 4 Wrong Marks: 1

A thinly thick wheel with moment of inertia I and radius R is free to rotate about its centre of mass (see fig). A massless string is wrapped over its rim and two blocks of masses m1 and m2 (m1 > m2) are attached to the ends of the string. The system is released from rest. The angular speed of the wheel when m1 descents by a distance h is: