ROYAL ACADEMY PRE-BOARD EXAMINATION CLASS-X SUBJECT-Physics SESSION: 2022-2023 Full Marks : 80 Time : 2.00 Hrs. Section-A 1) The moment of force of 2N about . a point is 7N-m. The distance of pointis- c. 5 m b. 0.35 mn 3m at of A force of 20N displaces a body by distance done will be a. 30J ili. A man exerts force a of 600N in pushing a car b. 7200 WN Which of the following isotope of uranium is b.U-238 a. U-234 on road are seen on and desert in Mirage phenomenon is responsible for this ? a. 8200 WN iv. vi. vii. at a speed to its own direction. The vork by man d. All of these c. U-235 hot summer index, then its c. zero days. critical Whiclh of the angle will following physical be d. equal lateral displacement ? Which of the following colour has most d. Violet c. Green b. Blue a. Red low is greater than the frequency of a note with The frequency of a note with high pitch ? is correct Which statement about the note with the high pitch waves travelling piteh. b. it has smaller wavelength d. It has lower speed in air. c.It has greater speed in air When sound is- d. 8300 c. 7300 WN c. Reflection b. highest of 60 unstable ? b. Refraction The diamond has maximum refractive of the force from this d. 20J of 12 m/s. The power exerted d. Deviation a. It has larger wavelength. ix. angle a. Total internal reflection a. lowest vii. an c.35.J b. 75J point d. 3.5 m a. 3 m . 15 Choose the correct answer to the questions from the given options in air enter into another medium, quantity which remains unchanged is b. velocity d. None of these cm. Its power is d.-4 D C.-2 D in an electric circuit and the potential difference The current flowing through a resistor connected resistor is below. The valuc of the resistance of the applied across its ends are shown in figures a. wavelength c. frequency A convex lens has focal length of 50 b. +4D a. +2D xi. 100 0- 300 0 Ammeter (mA) xii. 2 200 b. 5 a.12 in the figure below shown is A 3-pin plug Page No. 1 c. 82 3 voltmeter (V) d. 10 2
Formatting page ...