1
JEE Main 2023 (Online) 1st February Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Match List I with List II:

List I List II
A. Intrinsic semiconductor I. Fermi-level near the valence bond
B. n-type semiconductor II. Fermi-level in the middle of valence and conduction band.
C. p-type semiconductor III. Fermi-level near the conduction band
D. Metals IV. Fermi-level inside the conduction band

Choose the correct answer from the options given below :

A
A-III, B-I, C-II, D-IV
B
A-II, B-I, C-III, D-IV
C
A-I, B-II, C-III, D-IV
D
A-II, B-III, C-I, D-IV
2
JEE Main 2023 (Online) 1st February Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Find the magnetic field at the point $$\mathrm{P}$$ in figure. The curved portion is a semicircle connected to two long straight wires.

JEE Main 2023 (Online) 1st February Morning Shift Physics - Magnetic Effect of Current Question 40 English

A
$$\frac{\mu_{0} i}{2 r}\left(\frac{1}{2}+\frac{1}{2 \pi}\right)$$
B
$$\frac{\mu_{\mathrm{o}} i}{2 r}\left(1+\frac{2}{\pi}\right)$$
C
$$\frac{\mu_{0} \dot{i}}{2 r}\left(\frac{1}{2}+\frac{1}{\pi}\right)$$
D
$$\frac{\mu_{0} i}{2 r}\left(1+\frac{1}{\pi}\right)$$
3
JEE Main 2023 (Online) 1st February Morning Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language

Which of the following frequencies does not belong to FM broadcast ?

A
$$106 ~\mathrm{MHz}$$
B
$$89 ~\mathrm{MHz}$$
C
$$64 ~\mathrm{MHz}$$
D
$$99 ~\mathrm{MHz}$$
4
JEE Main 2023 (Online) 1st February Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

The equivalent resistance between $$A$$ and $$B$$ of the network shown in figure;

JEE Main 2023 (Online) 1st February Morning Shift Physics - Current Electricity Question 69 English

A
21 R
B
$$\frac{8}{3}$$ R
C
11$$\frac{2}{3}$$ R
D
14 R
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