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JEE Main 2024 Daily Practice Questions: Candidates should start solving the daily practice questions of JEE Main 2024 from now onwards. Though there is no official announcement till now, however, the experts assumed that the JEE Main Phase 1 exam will be held tentatively in January 2024. Therefore, this is high time to practice constantly, so that they can secure a good rank in the JEE Main 2024 exam.
Ques. The surface area of a balloon of spherical shape being inflated increases at a constant rate. If initially, the radius of the balloon is 3 units and after 5 seconds, it becomes 7 units then its radius after 9 seconds is:
Ques. Bag A contains 2 white, 1 Black, and 3 Red Balls, and Bag B contains 3 black, 2 red, and ‘n’ white balls. One bag is chosen at random and 2 balls drawn from it at random, are found to be 1 red and 1 black. If the probability that both balls come from Bag A is 6/11, then n is equal to:
Ques. The approximate height from the surface of the earth at which the weight of the body becomes 1/3 of its weight on the surface of the earth is:
Note, the Radius of the earth R= 6400 KM and √3= 1.732
1. 3840 km
2. 4685 km
3. 2133 km
4. 4267 km
Ques. A resistance of 40 Ω is connected to a source of alternating current rated 220V, 50 Hz. Find the time taken by the current to change from its maximum value to the rms value:
1. 2.5 ms
2. 1.25 ms
3. 2.5 s
4. 0.25 s
Ques. A baseband signal of 3.5 MHz frequency is modulated with a carrier signal of 3.5 GHz frequency using the amplitude modulation method. What should be the minimum size of the antenna required to transmit the modulated signal?
1. 42.8 m
2. 42.8 mm
3. 21.4 mm
4. 21.4 m
Ques. Which of the following is not a broad-spectrum antibiotic?
4. Penicillin G
Ques. Which of the following is an example of polyester?
1. Butadiene-styrene copolymer
2. Melamine polymer
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