CSIR NET-JRF Physical Sciences Quiz

CSIR NET-JRF Physical Sciences Quiz

12th Grade

31 Qs

quiz-placeholder

Similar activities

uts senimusik

uts senimusik

9th - 12th Grade

30 Qs

MUSIC 10  q1

MUSIC 10 q1

9th - 12th Grade

29 Qs

Long Quiz Force

Long Quiz Force

12th Grade

35 Qs

Latihan soal sem. 2 IPS kelas 9

Latihan soal sem. 2 IPS kelas 9

9th Grade - University

34 Qs

PSAS MTK KELAS XII GANJIL 2024

PSAS MTK KELAS XII GANJIL 2024

12th Grade

30 Qs

Sejarah

Sejarah

12th Grade

30 Qs

Simulasi Sumatif

Simulasi Sumatif

6th Grade - University

30 Qs

Christmas Quiz

Christmas Quiz

9th - 12th Grade

30 Qs

CSIR NET-JRF Physical Sciences Quiz

CSIR NET-JRF Physical Sciences Quiz

Assessment

Quiz

Others

12th Grade

Practice Problem

Hard

Created by

Satyam Ruhela

FREE Resource

AI

Enhance your content in a minute

Add similar questions
Adjust reading levels
Convert to real-world scenario
Translate activity
More...

31 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A set of 100 data points yields an average x̄ = 9 and a standard deviation σx = 4. The error in the estimated mean is closest to

3.0

0.4

4.0

0.3

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

An integral is given by ∬ exp(-2xy + a) dx dy, where a is a real parameter. The full range of values of a for which the integral is finite, is

a < -2

-2 < a < 2

-1 < a < 1

-1 ≤ a ≤ 1

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Vorticity of vector field B is defined as V = ∇ × B. Given B = kxyz, where k is a constant, which one of the following is correct?

Vorticity is a null vector for all finite x, y, z

Vorticity is parallel to the vector field everywhere

The angle between vorticity and vector field depends on x, y, z

Vorticity is perpendicular to the vector field everywhere

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The matrix A is given by A = [[1, 2, 3], [0, 3, 2], [0, 0, 2]]. The eigenvalues of A^3 + 5A^2 + 6A + 2I, where I is the identity matrix, are

4, 9, 27

1, 9, 44

1, 110, 8

4, 110, 10

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Probability density function of a variable x is given by P(x) = δ(x - a) + δ(x + a). The variance of x is

2a

0

2a^2

2a^2

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

An integral transform F of a function f(x) can be regarded as a result of applying an operator F to the function such that F(f(x)) = ∫ f(y) e^(-ixy) dy. If I is the identity operator, then the operator F is given by

(4/2)I

(2/2)I

I

(2/2)I

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The integral I = ∫ (1/(x^2 + 1)) dx from 0 to 2 is estimated using Simpson's 1/3rd rule with a grid value of h = 0.5. The difference (I_estimated - I_exact) is closest to

0.007

0.001

0.0007

-0.005

Create a free account and access millions of resources

Create resources

Host any resource

Get auto-graded reports

Google

Continue with Google

Email

Continue with Email

Classlink

Continue with Classlink

Clever

Continue with Clever

or continue with

Microsoft

Microsoft

Apple

Apple

Others

Others

Already have an account?