Physics (light, electricity) MCQs for Patwari
Practice 20 free physics (light, electricity) multiple choice questions for Patwari exam. Instant answers, explanations in Hindi and English, and topic-wise targeted practice.
Master Physics (light, electricity) under Basic Science for Patwari with our curated MCQ set. Every question is sourced from real Rajasthan exam patterns and updated regularly. Switch between Hindi and English anytime. Use this daily to strengthen weak areas before the exam.
Patwari — Basic Science — Physics (light, electricity)
20 Questions • Instant results & explanations • Hindi & English
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Question 1 of 20
What is the nature of the image invariably formed by a concave lens?
Question 2 of 20
To differentiate between the two operational domains of electricity, which condition must be met for a system to be classified under 'Current Electricity'?
Question 3 of 20
Which property of soft iron makes it suitable for temporary magnets?
Question 4 of 20
What type of electromagnetic waves are primarily utilized to generate clear visualizations of the skeletal system?
Question 5 of 20
Which of the following is defined as the physical agent that makes vision possible and facilitates the transfer of energy across the vacuum of space?
Question 6 of 20
Consider a circuit where three resistors of 2 Ohms, 4 Ohms, and 6 Ohms are connected in series. What is the total equivalent resistance of this circuit?
Question 7 of 20
According to Rayleigh's law of scattering, the intensity of scattered light depends on its wavelength. Which of the following relationships mathematically represents this law?
Question 8 of 20
The acronym LASER stands for Light Amplification by Stimulated Emission of Radiation. What are the key characteristic properties that differentiate a laser beam from a standard light beam produced by an incandescent light bulb?
Question 9 of 20
Assertion (A): Electromagnets are utilized in essential medical imaging equipment like MRI machines. Reason (R): Electromagnets act as temporary magnets because they are constructed using materials with low retentivity, allowing their powerful magnetic fields to be turned on and off immediately using an electric current.
Question 10 of 20
The formation of a rainbow in the sky after a rain shower is a complex optical event. Which combination of phenomena is responsible for it?
Question 11 of 20
Which specific physical interaction is the core subject of the branch 'Chumbakatva'?
Question 12 of 20
Review the following electrical statements and identify the correct combination: (1) An ammeter measures potential difference and must always be wired into a circuit branch in parallel. (2) The mathematical expression for the thin lens formula contains a negative sign: 1/f = 1/v - 1/u. (3) Static electricity describes charges flowing rapidly through heavy industrial copper bars.
Question 13 of 20
Spherical mirrors, heavily utilized in various optical applications, are geometrically derived from which of the following structures?
Question 14 of 20
Consider the following statements regarding the behavior of magnetic materials: 1. Bismuth is a diamagnetic material and its susceptibility is negative. 2. Iron is a ferromagnetic material and it can become a permanent magnet. 3. Electromagnets require materials with a very wide hysteresis loop to function effectively. Which of the statements given above is/are correct?
Question 15 of 20
Consider a boiling cup of water and a massive boiling pot of water, both registering exactly 100°C on a thermometer. However, the pot of water is capable of melting significantly more ice. This observation scientifically proves that:
Question 16 of 20
If an electrical heater operates at a constant voltage and its resistance is somehow halved, what will happen to the power consumed by the heater?
Question 17 of 20
Modern telecommunications and broadband internet rely heavily on optical fibers for long-distance data transmission. Which foundational optical principle forms the operational backbone of these fibers, allowing minimal signal loss?
Question 18 of 20
If the power of a lens is strictly dependent on its focal length, a lens with a power of 0 D would theoretically correspond to:
Question 19 of 20
Assertion (A): For candidates preparing for the RSSB Police SI and Patwari exams, deep theoretical understanding of Quantum Physics is critical. Reason (R): The RSSB numerical focus derives directly from the NCERT Class 10 textbook concepts like equivalent resistance and mirror formulas.
Question 20 of 20