Day 119: JEE Mains Physics
5 questions. Try each one first, then open its answer.
Question 1
Ray Optics. This type asked 2 times: 2021 Paper 5, 3 Apr 2025. This one: 3 Apr 2025 See all 2 of this type
20Consider following statements for refraction of light through prism, when angle of deviation is minimum. (A) The refracted ray inside prism becomes parallel to the base. (B) Larger angle prisms provide smaller angle of minimum deviation. (C) Angle of incidence and angle of emergence becomes equal. (D) There are always two sets of angle of incidence for which deviation will be same except at minimum deviation setting. (E) Angle of refraction becomes double of prism angle. Choose the correct answer from the options given below.Tap an option to check your answer.
Question 2
Electrostatics. This type asked 2 times: 26 Jun 2022, 2 Apr 2025. This one: 2 Apr 2025 See all 2 of this type
76Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A) : Net dipole moment of a polar linear isotropic dielectric substance is not zero even in the absence of an external electric field. Reason (R) : In absence of an external electric field, the different permanent dipoles of a polar dielectric substance are oriented in random directions. In the light of the above statements, choose the most appropriate answer from the options given below:Tap an option to check your answer.
Question 3
Waves. This type asked 2 times: 2021 Paper 8, 2 Apr 2025. This one: 2 Apr 2025 See all 2 of this type
81A sinusoidal wave of wavelength 7.5 cm travels a distance of 1.2 cm along the - direction in 0.3 sec . The crest is at at and maximum displacement of the wave is 2 cm . Which equation correctly represents this wave ?Tap an option to check your answer.
Question 4
Laws of Motion. This type asked 2 times: 27 Jul 2022, 29 Jan 2025. This one: 29 Jan 2025 See all 2 of this type
87A sand dropper drops sand of mass on a conveyer belt at a rate proportional to the square root of speed (v) of the belt, i.e. . If P is the power delivered to run the belt at constant speed then which of the following relationship is true?Tap an option to check your answer.
Question 5
Electrostatics. This type asked 2 times: 24 Jan 2025, 28 Jan 2025. This one: 28 Jan 2025 See all 2 of this type
77A parallel plate capacitor of capacitance is charged to a potential difference of 20 V . The distance between plates is . The energy density between plates of capacitor is :Tap an option to check your answer.