NEET UG Mechanics: Measurement & Kinematics: Motion in a Plane – Chapter Test

Topics in this test

Difficulty: 4 medium · 14 hard

Motion in a Plane MCQ questions with answers

The first 3 of 18 questions. Unlock the series for the rest, each with a solution.

1. Q1. A projectile is thrown with a speed of 20 m/s at 30° to the horizontal. With g = 10 m/s², the maximum height attained is:

   एक प्रक्षेप्य को क्षैतिज से 30° पर 20 m/s की चाल से फेंका जाता है। g = 10 m/s² के साथ, प्राप्त अधिकतम ऊँचाई है:

   • A. 2.5 m
   • B. 20 m
   • C. 10 m
   • D. 5 m
   Solution

   Maximum height H = u²sin²θ/(2g) = (400 × 0.25)/20 = 5 m.

   अधिकतम ऊँचाई H = u²sin²θ/(2g) = (400 × 0.25)/20 = 5 m।

2. Q2. For two non-zero vectors A and B, the magnitude of their cross product equals the magnitude of their dot product when the angle between them is:

   दो शून्येतर सदिशों A और B के लिए, उनके सदिश गुणनफल का परिमाण उनके अदिश गुणनफल के परिमाण के बराबर तब होता है जब उनके बीच का कोण होता है:

   • A. 90°
   • B. 30°
   • C. 45°
   • D. 60°
   Solution

   |A×B| = AB sinθ and |A·B| = AB cosθ; equating gives tanθ = 1, so θ = 45°.

   |A×B| = AB sinθ और |A·B| = AB cosθ; इन्हें बराबर करने पर tanθ = 1 मिलता है, अतः θ = 45°।

3. Q3. Which of the following is a scalar quantity?

   निम्नलिखित में से कौन-सी एक अदिश राशि है?

   • A. Acceleration / त्वरण
   • B. Velocity / वेग
   • C. Displacement / विस्थापन
   • D. Speed / चाल
   Solution

   Speed is a scalar (magnitude only), whereas displacement, velocity and acceleration are vectors having both magnitude and direction.

   चाल एक अदिश राशि है (केवल परिमाण), जबकि विस्थापन, वेग और त्वरण सदिश हैं जिनमें परिमाण और दिशा दोनों होते हैं।

Frequently asked questions

More tests in the NEET UG 2027 Mock Test Series

• Biology in Human Welfare – Topic TestFree
• Cell Biology – Topic Test
• Diversity in the Living World – Topic Test
• Ecology – Topic Test
• Genetics – Topic Test
• Plant Physiology – Topic Test
• Plant Reproduction – Topic Test
• Structural Organisation in Plants – Topic Test
• Basic Concepts & Atomic Structure – Topic Test
• Biomolecules – Topic Test
• Inorganic: p/d/f Block & Coordination – Topic Test
• Organic: Basics & Hydrocarbons – Topic Test
• Organic: Functional Groups – Topic Test
• Periodicity & Chemical Bonding – Topic Test
• Solutions, Electrochemistry & Kinetics – Topic Test
• Thermodynamics & Equilibrium – Topic Test
• Electrostatics & Current Electricity – Topic Test
• Laws of Motion & Work-Energy – Topic Test
• Magnetism, EMI & AC – Topic Test
• Mechanics: Measurement & Kinematics – Topic Test
• Modern Physics & Electronics – Topic Test
• Optics – Topic Test
• Oscillations and Waves – Topic Test
• Properties of Matter & Heat – Topic Test
• Rotational Motion & Gravitation – Topic Test
• Animal Diversity – Topic Test
• Biomolecules & Cell Chemistry – Topic Test
• Biotechnology – Topic Test
• Evolution – Topic Test
• Human Physiology I: Nutrition, Respiration & Circulation – Topic Test

See the full NEET UG 2027 Mock Test Series → · NEET UG: pattern, notification & syllabus →