Light is invisible until it hits an object. It can only be visible to us whenever it get scattered or bounced off the dust particles in the intervening medium. We can see the source of light like stars at night as they are too dim to light up much but that light does hit our eyes and therefore we see the light. The above discussion on visibility of light is only confined to the electromagnetic radiation of wavelength from 400 nm to 700 nm which is called visible light, as these electromagnetic radiations gives the sensation of sight.
Light is, perhaps, the most wonderful of all visible things.
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Assertion and Reason Questions for Class 9 Maths Chapter 10 Circles
Assertion and Reason Questions for Class 9 Maths Chapter 10 Circles Directions: Choose the correct answer out of the following choices : (a) Assertion and Reason both are correct statements and Reason is the correct explanation of Assertion.(b) Assertion and Reason both are correct statements but Reason is not the correct explanation of Assertion.(c) Assertion … Continue reading Assertion and Reason Questions for Class 9 Maths Chapter 10 Circles
Assertion and Reason Questions for Class 9 Maths Chapter 2 Polynomials
Assertion and Reason Questions for Class 9 Maths Chapter 2 Polynomials Directions: Choose the correct answer out of the following choices :(a) Assertion and Reason both are correct statements and Reason is the correct explanation of Assertion.(b) Assertion and Reason both are correct statements but Reason is not the correct explanation of Assertion.(c) Assertion is … Continue reading Assertion and Reason Questions for Class 9 Maths Chapter 2 Polynomials
Assertion and Reason Questions for Class 9 Maths Chapter 15 Probability
Assertion and Reason Questions for Class 9 Maths Chapter 15 Probability Directions: Choose the correct answer out of the following choices :(a) Assertion and Reason both are correct statements and Reason is the correct explanation of Assertion.(b) Assertion and Reason both are correct statements but Reason is not the correct explanation of Assertion.(c) Assertion is … Continue reading Assertion and Reason Questions for Class 9 Maths Chapter 15 Probability
Science and Maths Concepts and Formulas for Class 10 Term 2 Exams
Science and Maths Concepts and Formulas for Class 10 Term 2 Exams How this concept and formula booklet is going to help you in your term 2 exam? If this question comes to your mind, then think of the revision tools missing while taking the exam. The theory part is clear to most of you … Continue reading Science and Maths Concepts and Formulas for Class 10 Term 2 Exams
Practice Sheets for CBSE Class 12 Term 2 Examination
Practice Sheets for CBSE Class 12 Term 2 Examination We are providing practice sheets for CBSE Class 12 Term 2 Examinations. The questions are prepared strictly according to the latest syllabus prescribed by CBSE board. Practice sheets for Physics, Chemistry, Maths, Biology and English are available. Practice Sheets CBSE Class 12 Practice Sheets based on … Continue reading Practice Sheets for CBSE Class 12 Term 2 Examination
MCQ Questions for Class 11 Physics Chapter 9 Mechanical Properties of Solids
Q.1. Which of the following materials is most elastic?(a) Steel (b) Rubber(c) Copper (d) Glass Answer Answer: (a) Young’s modulus of elasticity is highest for steel and Greater the young’s modulus larger is its elasticity. Q.2. The property of a body by virtue of which it tends to regain its original size and shape when … Continue reading MCQ Questions for Class 11 Physics Chapter 9 Mechanical Properties of Solids
Assertion Reason Questions for Class 9 Science Term 2 Exam
There are 6 chapters in CBSE Class 9 Science Term 2 Syllabus. These includes class 9 science chapter 3, 4, 10, 11, 12 and 13. Assertion Reason Questions based on these are provided below. Assertion Reason Questions for Class 9 Science Term 2 Exam Assertion-Reason Questions are the most tedious part of the question paper. … Continue reading Assertion Reason Questions for Class 9 Science Term 2 Exam
Assertion and Reason Questions for Class 9 Maths Chapter 8 Quadrilaterals
Assertion and Reason Questions for Class 9 Maths Chapter Quadrilaterals Directions: (a) Assertion and reason are true and reason is the correct explanation of assertion.(b) Both assertion and reason are true but reason is not the correct explanation of assertion.(c) Assertion is true but reason is false.(d) Assertion is false but reason is true. Q.1. … Continue reading Assertion and Reason Questions for Class 9 Maths Chapter 8 Quadrilaterals
Assertion and Reason Questions for Class 11 Physics Chapter 14 Oscillations
Assertion and Reason Questions for Class 11 Physics Chapter 14 Oscillations Directions: (a) If both assertion and reason are true and the reason is the correct explanation of the assertion.(b) If both assertion and reason are true but reason is not the correct explanation of the assertion.(c) If assertion is true but reason is false.(d) … Continue reading Assertion and Reason Questions for Class 11 Physics Chapter 14 Oscillations
Assertion and Reason Questions for Class 11 Physics Chapter 12 Thermodynamics
Assertion and Reason Questions for Class 11 Physics Chapter 12 Thermodynamics Directions: Each of these questions contain two statements, Assertion and Reason. Each of these questions also has four alternative choices, only one of which is the correct answer. You have to select one of the codes (a), (b), (c) and (d) given below.(a) If … Continue reading Assertion and Reason Questions for Class 11 Physics Chapter 12 Thermodynamics
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