CUET 2026 Physics May 18 Shift 1 Question Paper- Download Answer Key and Solution PDF

CUET 2026 May 18 Shift 1 Physics Question Paper is available for download here. NTA is conducting the CUET 2026 exam from 11th May to 31st May.

CUET 2026 Physics exam consists of 50 questions for 250 marks to be attempted in 60 minutes.
As per the marking scheme, 5 marks are awarded for each correct answer, and 1 mark is deducted for incorrect answer.

Candidates can download CUET 2026 May 18 Shift 1 Physics Question Paper with Answer Key and Solution PDF from links provided below.

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CUET 2026 Physics May 18 Shift 1 Question Paper with Solution PDF

CUET May 18 Shift 1 Physics Question Paper 2026	Download PDF	Check Solutions

Question 1:

What are the respective numbers of \(\alpha\) and \(\beta\) particles emitted respectively in the following radioactive decay?
\(^{200}_{90}X \rightarrow ^{168}_{80}Y\)

(a) 8 and 8
(b) 8 and 6
(c) 6 and 8
(d) 6 and 6

Detailed Solution

Question 2:

Current \(I\) is flowing in conductor shaped as shown in the figure. The radius of the curved part is \(r\) and the length of straight portion is very large. The value of the magnetic field at the centre \(O\) will be

(a) \(\frac{\mu_0 I}{4\pi r} \left( \frac{3\pi}{2} + 1 \right)\)
(b) \(\frac{\mu_0 I}{4\pi r} \left( \frac{3\pi}{2} - 1 \right)\)
(c) \(\frac{\mu_0 I}{4\pi r} \left( \frac{\pi}{2} + 1 \right)\)
(d) \(\frac{\mu_0 I}{4\pi r} \left( \frac{\pi}{2} - 1 \right)\)

Detailed Solution

Question 3:

The magnetic induction at the centre \(O\) in the figure shown is

(a) \(\frac{\mu_0 i}{4} \left( \frac{1}{R_1} - \frac{1}{R_2} \right)\)
(b) \(\frac{\mu_0 i}{4} \left( \frac{1}{R_1} + \frac{1}{R_2} \right)\)
(c) \(\frac{\mu_0 i}{4} (R_1 - R_2)\)
(d) \(\frac{\mu_0 i}{4} (R_1 + R_2)\)

Detailed Solution

Question 4:

Three long, straight parallel wires, carrying current, are arranged as shown in figure. The force experienced by a 25 cm length of wire \(C\) is

(a) \(10^{-3} N\)
(b) \(2.5 \times 10^{-3} N\)
(c) Zero
(d) \(1.5 \times 10^{-3} N\)

Detailed Solution

Question 5:

A steady current \(I\) flow through a long straight wire of radius ‘\(a\)’. The current is uniformly distributed across its cross section. The ratio of the magnetic fields due to the wire at distance \(\frac{a}{4}\) and \(3a\) respectively from the axis of the wire is

(a) 3 : 4
(b) 4 : 3
(c) 2 : 3
(d) 1 : 4

Detailed Solution

Question 6:

The nucleus of helium atom contains two protons that are separated by a distance 3.0 \(\times\) 10⁻¹⁵ m. The magnitude of the electrostatic force that each proton exerts on the other is

(a) 20.6 N
(b) 25.6 N
(c) 15.6 N
(d) 12.6 N

Detailed Solution

Question 7:

Under the action of a given coulombic force the acceleration of an electron is 2.5 \(\times\) 10²² m s⁻². Then the magnitude of the acceleration of a proton under the action of same force is nearly

(a) 1.6 \(\times\) 10⁻¹⁹ m s⁻²
(b) 9.1 \(\times\) 10³¹ m s⁻²
(c) 1.5 \(\times\) 10¹⁹ m s⁻²
(d) 1.6 \(\times\) 10²⁷ m s⁻²

Detailed Solution

Question 8:

If the charge on an object is doubled then electric field becomes

(a) half
(b) double
(c) unchanged
(d) thrice

Detailed Solution

Question 9:

Which of the following statements is not true about electric field lines?

(a) Electric field lines start from positive charge and end at negative charge.
(b) Two electric field lines can never cross each other.
(c) Electrostatic field lines do not form any closed loops.
(d) Electric field lines cannot be taken as continuous curve

Detailed Solution

Question 10:

Two infinite plane parallel sheets, separated by a distance \(d\) have equal and opposite uniform charge densities \(\sigma\). Electric field at a point between the sheets is

(a) \(\frac{\sigma}{2\varepsilon_0}\)
(b) \(\frac{\sigma}{\varepsilon_0}\)
(c) zero
(d) depends on the location of the point

Detailed Solution

CUET UG 2026 Exam Pattern

Parameter	Details
Exam Name	Common University Entrance Test (CUET UG) 2026
Conducting Body	National Testing Agency (NTA)
Exam Mode	Computer-Based Test (CBT)
Exam Duration	60 minutes per test
Total Sections	3 (Languages, Domain Subjects, General Test)
Question Type	Multiple Choice Questions (MCQs)
Questions per Test	50 questions (all compulsory)
Marking Scheme	+5 for correct, -1 for incorrect
Maximum Marks	250 marks per test
Maximum Subject Choices	5 subjects in total
Syllabus Base	Class 12 NCERT (mainly for Domain Subjects)

CUET UG 2026 18 May Shift-1 Paper Analysis

CUET Questions

1.
In a full wave rectifier circuit operating with \(50\,\text{Hz}\) mains frequency, the fundamental frequency in the ripple at the output would be

\(25\,\text{Hz}\)
\(50\,\text{Hz}\)
\(75\,\text{Hz}\)
\(100\,\text{Hz}\)

View Solution

2.
A circular wire loop of radius \(R\) is placed in the \(x\)-\(y\) plane centered at the origin. A square loop of side \(a\;(a\ll R)\) of single turn is placed with its plane parallel to the \(x\)-\(y\) plane and at a distance \(z=\sqrt{3}\,R\). The mutual inductance between the loops is

\[ \frac{\mu_0a^2}{4R} \]
\[ \frac{\mu_0R}{8a^2} \]
\[ \frac{\mu_0R}{4a} \]
\[ \frac{\mu_0a^2}{16R} \]

View Solution

3.
The surface of a certain metal is first illuminated with light of wavelength \(\lambda_1=350\,\text{nm}\), and then by light of wavelength \(\lambda_2=540\,\text{nm}\). It is found that the maximum speed of the photoelectrons in the two cases differ by a factor of \(2\). The work function of the metal (in eV) is close to \[ \left(\text{Energy of photon}=\frac{1240}{\lambda(\text{nm})}\text{ eV}\right) \]

\(2.58\)
\(1.88\)
\(3.22\)
\(1.48\)

View Solution

4.
Match List-I with List-II
where \[ \text{(I)}\;100\,\text{m} \] \[ \text{(II)}\;10^{-15}\,\text{m} \] \[ \text{(III)}\;10^{-10}\,\text{m} \] \[ \text{(IV)}\;10^{-3}\,\text{m} \] Choose the correct answer from the options given below:

(A)-(II), (B)-(I), (C)-(IV), (D)-(III)
(A)-(IV), (B)-(II), (C)-(I), (D)-(III)
(A)-(III), (B)-(II), (C)-(I), (D)-(IV)
(A)-(I), (B)-(III), (C)-(IV), (D)-(II)

View Solution

5.
Five cells, each of emf \((E)\) and internal resistance \((r)\), are connected in series. If out of these five cells, one of the cells is connected with opposite polarity, the equivalent emf and internal resistance of the combination, respectively, will be

\(5E,\;5r\)
\(4E,\;4r\)
\(3E,\;5r\)
\(3E,\;3r\)

View Solution

6.
An electron is found to repel another electron at a distance of \(1\,\text{cm}\) with a force \(F=2.3\times10^{-24}\,\text{N}\). Two protons placed at a distance of \(5\,\text{cm}\) will

repel each other with a force \(F=2.3\times10^{-24}\,\text{N}\)
attract each other with a force \(F=2.3\times10^{-24}\,\text{N}\)
repel each other with a force \(F=9.2\times10^{-26}\,\text{N}\)
attract each other with a force \(F=4.6\times10^{-25}\,\text{N}\)

View Solution

CUET 2026 Physics May 18 Shift 1 Question Paper- Download Answer Key and Solution PDF

CUET 2026 Physics May 18 Shift 1 Question Paper with Solution PDF

CUET UG 2026 Exam Pattern

CUET UG 2026 18 May Shift-1 Paper Analysis

CUET Questions

1.
In a full wave rectifier circuit operating with \(50\,\text{Hz}\) mains frequency, the fundamental frequency in the ripple at the output would be

2.
A circular wire loop of radius \(R\) is placed in the \(x\)-\(y\) plane centered at the origin. A square loop of side \(a\;(a\ll R)\) of single turn is placed with its plane parallel to the \(x\)-\(y\) plane and at a distance \(z=\sqrt{3}\,R\). The mutual inductance between the loops is

4.
Match List-I with List-II
where \[ \text{(I)}\;100\,\text{m} \] \[ \text{(II)}\;10^{-15}\,\text{m} \] \[ \text{(III)}\;10^{-10}\,\text{m} \] \[ \text{(IV)}\;10^{-3}\,\text{m} \] Choose the correct answer from the options given below:

5.
Five cells, each of emf \((E)\) and internal resistance \((r)\), are connected in series. If out of these five cells, one of the cells is connected with opposite polarity, the equivalent emf and internal resistance of the combination, respectively, will be

6.
An electron is found to repel another electron at a distance of \(1\,\text{cm}\) with a force \(F=2.3\times10^{-24}\,\text{N}\). Two protons placed at a distance of \(5\,\text{cm}\) will

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CUET 2026 Physics May 18 Shift 1 Question Paper with Solution PDF

CUET UG 2026 Exam Pattern

CUET UG 2026 18 May Shift-1 Paper Analysis

CUET Questions

1.In a full wave rectifier circuit operating with \(50\,\text{Hz}\) mains frequency, the fundamental frequency in the ripple at the output would be

2.A circular wire loop of radius \(R\) is placed in the \(x\)-\(y\) plane centered at the origin. A square loop of side \(a\;(a\ll R)\) of single turn is placed with its plane parallel to the \(x\)-\(y\) plane and at a distance \(z=\sqrt{3}\,R\). The mutual inductance between the loops is

4.Match List-I with List-II where \[ \text{(I)}\;100\,\text{m} \] \[ \text{(II)}\;10^{-15}\,\text{m} \] \[ \text{(III)}\;10^{-10}\,\text{m} \] \[ \text{(IV)}\;10^{-3}\,\text{m} \] Choose the correct answer from the options given below:

5.Five cells, each of emf \((E)\) and internal resistance \((r)\), are connected in series. If out of these five cells, one of the cells is connected with opposite polarity, the equivalent emf and internal resistance of the combination, respectively, will be

6.An electron is found to repel another electron at a distance of \(1\,\text{cm}\) with a force \(F=2.3\times10^{-24}\,\text{N}\). Two protons placed at a distance of \(5\,\text{cm}\) will

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1.
In a full wave rectifier circuit operating with \(50\,\text{Hz}\) mains frequency, the fundamental frequency in the ripple at the output would be

2.
A circular wire loop of radius \(R\) is placed in the \(x\)-\(y\) plane centered at the origin. A square loop of side \(a\;(a\ll R)\) of single turn is placed with its plane parallel to the \(x\)-\(y\) plane and at a distance \(z=\sqrt{3}\,R\). The mutual inductance between the loops is

4.
Match List-I with List-II
where \[ \text{(I)}\;100\,\text{m} \] \[ \text{(II)}\;10^{-15}\,\text{m} \] \[ \text{(III)}\;10^{-10}\,\text{m} \] \[ \text{(IV)}\;10^{-3}\,\text{m} \] Choose the correct answer from the options given below:

5.
Five cells, each of emf \((E)\) and internal resistance \((r)\), are connected in series. If out of these five cells, one of the cells is connected with opposite polarity, the equivalent emf and internal resistance of the combination, respectively, will be

6.
An electron is found to repel another electron at a distance of \(1\,\text{cm}\) with a force \(F=2.3\times10^{-24}\,\text{N}\). Two protons placed at a distance of \(5\,\text{cm}\) will