Archives: Answers
Answer
A bob is whirled in a horizontal plane by means of a string with an initial speed of ω rpm. The tension in the string is T. If speed becomes 2 ω while keeping the same radius, the tension in the string becomes : (1) T (2) 4T (3) T/ 4 (4) √ 2 T
Answer (2)
If represents the motion of a particle executing simple harmonic motion the amplitude and time period of motion, respectively, are (1) 5 cm, 2 s (2) 5 m, 2 s (3) 5 cm, 1 s (4) 5 m, 1 s
NEET-2024
Given below are two statements: Statement I Atoms are electrically neutral as they contain equal number of positive and negative charges. Statement II Atoms of each element are stable and emit their characteristic spectrum. In the light of the above statements, choose the most appropriate answer from the options given below. (1) Both Statement I and Statement II are correct (2) Both Statement I and Statement II are incorrect (3) Statement I is correct but Statement II is incorrect (4) Statement I is incorrect but Statement II is correct
Answer (3)
Average velocity of a particle executing SHM in one complete vibration is :
Average velocity of a particle executing SHM in one complete vibration is :
(NEET-2019) NTA Solutions (4):-
For a P type semiconductor which of the following statements is true ? (1)Electrons are the majority carriers and trivalent atoms are the dopants. (2)Holes are the majority carriers and trivalent atoms are the dopants. (3)Holes are the majority carriers and pentavalent atoms are the dopants. (4)Electrons are the majority carriers and pentavalent atoms are the dopants.
(NEET-2019) NTA Solutions (2):- Answer(2) Sol. In p-type semiconductor, an intrinsic semiconductor is doped with trivalent impurities, that creates deficiencies
A body weighs 200 N on the surface of the earth. How much will it weigh half way down to the centre of the earth ? (1)150 N (2)200 N (3)250 N (4)100 N
(NEET-2019) NTA Solutions (2):-
A body weighs 200 N on the surface of the earth. How much will it weigh half way down to the centre of the earth ? (1)150 N (2)200 N (3)250 N (4)100 N
(NEET-2019) NTA Solutions (4):-
Pick the wrong answer in the context with rainbow. (1)When the light rays undergo two internal reflections in a water drop, a secondary rainbow is formed (2)The order of colours is reversed in the secondary rainbow (3)An observer can see a rainbow when his front is towards the sun (4)Rainbow is a combined effect of dispersion refraction and reflection of sunlight
(NEET-2019) NTA Solutions (3):- Answer(3) Sol. Rainbow can’t be observed when observer faces towards sun.
