Gujarat Technological UniversitySummer 2024 examination

GTU 3110011 Physics Summer 2024 Question Paper & PDF

B.E. · Common Engineering · Semesters 1 and 2 · Subject code 3110011
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Total
70 marks
To pass
23 marks (33%)
Duration
2.5 Hours 2:30 PM – 5:00 PM
Questions
5 with internal choice
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18 of 25 questions on this paper were also asked in other years. 5 more are types of question GTU sets again with new data. Each is marked below with the years it appeared.See all 36 repeated 3110011 questions, most asked first

Q.1

14 Marks
(a)
3 marksAsked in 3 of 7 papers
What is Meissner effect? For superconductor show that χm = –1.

Also asked in Summer 2026 Q5a, Summer 2023 Q5c

(b)
4 marksAsked in 4 of 7 papers

Draw Stress versus Strain diagram with necessary notation and discuss it.

Also asked in Summer 2026 Q1b, Summer 2025 Q3b, Winter 2024 Q1c

(c)
7 marksAsked in 5 of 7 papers
iWrite principle of Piezoelectric Generator.
iiWith proper circuit diagram describe construction and working of Piezoelectric Generator.
iiiList merits and demerits of Piezoelectric Generator.

Also asked in Summer 2026 Q2c, Winter 2025 Q4c OR, Summer 2025 Q4c OR, Winter 2024 Q3c

Q.2

14 Marks
(a)
3 marksAsked in 2 of 7 papers

What is reverberation and reverberation time? Write Sabin’s formula for reverberation time and explain each term.

Also asked in Summer 2026 Q3a

(b)
4 marksAsked in 3 of 7 papers

State any four points of differences between spontaneous emission and stimulated emission.

Also asked in Summer 2026 Q3b, Summer 2023 Q1b

(c)
7 marksAsked in 3 of 7 papers

What is torsional pendulum? Derive expression of time period for vibration of torsional pendulum.

Also asked in Summer 2025 Q3c OR, Winter 2023 Q1b

(c)
7 marksAsked in 4 of 7 papers
Derive the expression for depression of Cantilever loaded at free end.

Also asked in Summer 2026 Q3c, Winter 2023 Q1c, Summer 2023 Q2c

Q.3

14 Marks
(a)
3 marksAsked in 6 of 7 papers
Write any three properties of ultrasonic waves.

Also asked in Summer 2026 Q2a, Winter 2025 Q4b OR, Summer 2025 Q2a, Winter 2024 Q3b, Winter 2023 Q3a

(b)
4 marksSame type asked in 5 of 7 papers

Calculate the length of iron rod which can be used to produce ultrasonic waves of 75 kHz. Given that the density of iron is 7230 kg/m³ and its Young’s modulus is 6 × 10⁹ N/m².

Also asked in Summer 2026 Q5b OR, Summer 2025 Q4b, Winter 2024 Q3a OR, Winter 2023 Q3b, Winter 2023 Q3b OR

(c)
7 marksAsked in 3 of 7 papers

What is called Acoustic Grating? Discuss the method to determine velocity of ultrasonic waves with the help of acoustic grating.

Also asked in Winter 2025 Q5b, Winter 2024 Q3c OR

(a)
3 marks
Give classification of sound waves based on frequency of wave.
(b)
4 marksAsked in 4 of 7 papers

Write any four points of differences between Destructive test and Non-destructive test.

Also asked in Summer 2026 Q3b OR, Winter 2025 Q5c, Summer 2023 Q4b OR

(c)
7 marksSame type asked in 3 of 7 papers
iDiscuss the method to determine depth of the sea with the help of SONAR.
iiAn ultrasonic wave of 7.2 MHz sends down a pulse towards the seabed, which returns after 1.2 s. The velocity of sound in seawater is 1800 m/s. Calculate the depth of sea and wavelength of pulse.

Also asked in Winter 2025 Q5a OR, Summer 2023 Q3a OR

Q.4

14 Marks
(a)
3 marksAsked in 6 of 7 papers
Write any three applications of LASER.

Also asked in Summer 2026 Q4a OR, Winter 2025 Q5b OR, Summer 2025 Q5b, Winter 2024 Q5b, Winter 2023 Q5a OR

(b)
4 marksAsked in 4 of 7 papers

Write any four factors affecting acoustic of building and their remedies.

Also asked in Summer 2026 Q3a OR, Summer 2025 Q3b OR, Winter 2024 Q2c OR

(c)
7 marksAsked in 7 of 7 papers
Write detailed note on Ruby laser with proper diagram.

Also asked in Summer 2026 Q4c OR, Winter 2025 Q5c OR, Summer 2025 Q2c OR, Winter 2024 Q4c OR, Winter 2023 Q4c OR, Summer 2023 Q5c OR

(a)
3 marksAsked in 5 of 7 papers

Write full for of LASER and discuss in brief characteristics of laser light.

Also asked in Summer 2026 Q1a, Winter 2025 Q4b, Winter 2024 Q4b OR, Winter 2023 Q5b

(b)
4 marksSame type asked in 3 of 7 papers

The volume of a room is 1500 m³. The wall area of the room is 240 m², the floor area is 125 m², and the ceiling area is 125 m². The average sound absorption coefficient (i) for wall is 0.025; (ii) for the ceiling is 0.85; and (iii) the floor is 0.09. Calculate the average sound absorption coefficient and reverberation time.

Also asked in Summer 2026 Q4b OR, Winter 2024 Q2b

(c)
7 marksAsked in 5 of 7 papers
Write detailed note on He-Ne laser with proper diagram.

Also asked in Summer 2026 Q1c, Summer 2025 Q2c, Winter 2023 Q5c, Summer 2023 Q3c

Q.5

14 Marks
(a)
3 marksSame type asked in 2 of 7 papers

For a superconducting material isotopic mass is 195 amu and critical temperature is 4.5 K. Calculate isotopic mass at 5.7 K.

Also asked in Summer 2023 Q4a OR

(b)
4 marksAsked in 4 of 7 papers

Write any four points of comparison of type-I and type-II superconductor.

Also asked in Summer 2026 Q5b, Winter 2024 Q4b, Summer 2023 Q3b OR

(c)
7 marksAsked in 2 of 7 papers

What is superconductivity? Discuss any six properties of superconductor.

Also asked in Summer 2026 Q4b

(a)
3 marksSame type asked in 3 of 7 papers

The critical current passing through a superconducting wire of radius 5 mm is 21 A. Calculate critical magnetic field.

Also asked in Summer 2026 Q5a OR, Winter 2024 Q4a OR

(b)
4 marksAsked in 2 of 7 papers
Explain in detail BCS theory of superconductivity.

Also asked in Summer 2025 Q4c

(c)
7 marks
iWrite a short note on SQUID.
iiWrite short note on London Penetration Depth.

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About this paper

Official Gujarat Technological University (GTU) examination paper for Physics (Summer 2024, B.E. · Common Engineering, Sem 1). Features complete 70-mark regular & remedial examination pattern, official marking distribution across all 5 questions, and direct 1-click official PDF download.

Transcribed for student exam preparation from Gujarat Technological University official examination archives. Questions, syllabus guidelines, and curriculum marking schemes remain the intellectual property of Gujarat Technological University.

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