JEE Main 2024 Daily Practice Questions for 18 September 2023

JEE Main 2024 Daily Practice Questions for 18 September 2023: It is speculated that the first session of JEE Main 2024 will be conducted in January 2024 and hence, with only a handful of time left, the aspirants must begin their daily practice vigorously. For their daily revision and practice, provided below are JEE Main 2024 daily practice questions as per the questions from the previous papers.

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JEE Main 2024 Daily Practice Questions for 18 September 2023

Physics: 

Question 1. The amplitude of 15 (sin1000 π t) is modulated by 10 sin(4 π t) signal. The amplitude-modulated signal contains the frequency (ies) of
A. 500 Hz
B. 2 Hz
C. 250 Hz
D. 498 Hz
E. 502 Hz
Choose the correct answer from the options given below:
(A) A and B Only
(B) B Only
(C) A Only
(D) A, D and E Only

Question 2. Spherical insulating ball and a spherical metallic ball of same size and mass are dropped from the same height. Choose the correct statement out of the following {Assume negligible air friction}
(A) Time taken by them to reach the earth’s surface will be independent of the properties of their materials.
(B) Metal ball will reach the earth’s surface earlier than the insulating ball.
(C) Both will reach the earth’s surface simultaneously.
(D) Insulating ball will reach the earth’s surface earlier than the metal ball.

Question 3. The effect of increase in temperature on the number of electrons in conduction band (n_e) and resistance of a semiconductor will be as:
(A) n_e decreases, resistance increases
(B) Both n_e and resistance increase
(C) Both n_e and resistance decrease
(D) n_e increases, resistance decreases

Chemistry:

Question 1. Which of the following represents the correct order of metallic character of the given elements?
(A) K < Mg < Be < Si
(B) Si < Be < Mg < K
(C) Be < Si < Mg < K
(D) Be < Si < K < Mg

Question 2.  Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R.
Assertion A: Carbon forms two important oxides - CO and CO₂, CO is neutral whereas CO₂ is acidic in nature.
Reason R: CO₂ can combine with water in a limited way to form carbonic acid, while CO is sparingly soluble in water. In the light of the above statements, choose the correct answer from the option given below:
(A) A is not correct but R is correct
(B) Both A and R are correct but R is NOT the correct explanation of A
(C) Both A and R are correct and R is the correct explanation of A
(D) A is correct but R is not correct

Question 3. On complete combustion, 0.492 g of an organic compound gave 0.792 g of CO₂. The % of carbon in the organic compound is ______ (Nearest integer).

Mathematics:

Question 1. Let R be a relation on N x N defined by (a, b) R (c, d) if any only if ad (b - c) = bc (a - d). Then R is
(A) reflexive and symmetric but not transitive
(B) transitive but neither reflexive nor symmetric
(C) symmetric and transitive but not reflexive
(D) symmetric but neither reflexive nor transitive

Question 2.  If the sum and product of four positive consecutive terms of a G.P., are 126 and 1296, respectively, then the sum of common ratios of all such GPs is
(A) 9/2
(B) 3
(C) 7
(D) 14

Question 3. The remainder when (2023)²⁰²³ is divided by 35 is______ (Nearest integer).

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