Category: Physics

Science > Physics > Motion in a Straight Line > Numerical Problems on Uniformly Accelerated Bodies Set – 03 Expression for the Distance Travelled by Body in nth Second of its Motion: By Newton’s Second equation of motion, s = ut + ½  at² where s = displacement of body in ‘t’ seconds u = initial […]

Science > Physics > Motion in a Straight Line > Numerical Problems on Uniformly Accelerated Bodies Set – 02 In this article we shall study to solve more problems on uniformly accelerated bodies. Example 01: The initial velocity of a car is 10 ms-1. It accelerates uniformly at 2 ms-2 for 20 s and thereafter […]

Science > Physics > Motion in a Straight Line > Numerical Problems on Uniformly Accelerated Bodies Set – 01 In this article we shall study the use of newton’s equation of motion applied to uniformly accelerated bodies. The equations of motion are: the first equation of motion ( v = u + at ), the […]

Conversion Table: Sr. No. From To Multiplying Factor 1 mm m x 10-3 2 cm m x 10-2 3 cm mm x 10 4 mm cm x 10-1 5 m cm x 102 6 m mm x 103 7 km hr-1 m s-1 x (5/18) 8 m s-1 km hr-1 x (18/5) 9 g cm-3 […]

Science > Physics > Units and Measurement > JEE Advanced Past Questions: Units and Measurements Fill in the Blank with Appropriate Answer: Q1. Plank’s constant has dimension ………….. (1985 2M) Click Here for Solution Q2. In the formula X = 3 YZ2, X and Z have dimensions of capacitance and magnetic induction respectively. The dimensions […]

Science > Physics > Units and Measurement > JEE Main/AIEEE Past Questions: Units and Measurements MCQs With One Correct Answer: Choose the Correct Alternative Q1. Identify the pair whose dimensions are equal (2002) (a) torque and work (b) stress and energy (c) force and stress (d) force and work Click Here for Solution Q2. Dimensions […]

Science > Physics > Introduction to Measurements > Concept Application – 01 Introduction to Measurements LIST OF SUB-TOPICS: Fill in the Blanks: Fill in the blanks with appropriate words. Answers: 1) seven, two 2) unit 3) m s-1 4) newton (N) 5) joule (J) 6) kg ms-1 7) kg m2 s-1 8) cm s-1 9) […]

Source of Problems: Fundamentals of Physics by Halliday and Resnick, 10th Edition: Chapter 1: Problems 1 to 9 Example 01: Earth is approximately a sphere of radius 6.37 x 106 m. What are (a) its circumference in kilometers, (b) its surface area in square kilometers, and (c) its volume in cubic kilometers? Given: radius of […]

Science > Physics > Thermometry > Numerical Problems on Principle of Heat Exchange In the last article, we have studied out calorimetry. In this article, we shall study more numerical problems on the principle of heat exchange. Law of Heat Exchange: When a hot body is mixed or kept in contact with a cold body, […]

Science > Physics > Thermometry > Numerical Problems on Temperature Scales In the last article, we have seen the concept of specific heat, latent heat and we have solved numerical problems on the concept. In this article, we shall study to solve problems on heat exchanges involving calorimeter. Heat Capacity of a Body: It is […]