question_answer1) Consider the following statements: Statement 1: The angle of incidence is equal to the angle of reflection. Statement 2: The angle of incidence, angle of reflection and normal lie on the same plain. Which one of the following is correct about the above statements?
question_answer2) What is the measurement of angle of reflection, if the measurement of angle between the incident ray and reflected ray is 90°?
question_answer3) Which one of the following is correct about the dispersion of light?
question_answer4) Diffuse reflection takes place on which one of the following types of surfaces?
question_answer5) What is the audible range of sound?
question_answer6) Hertz is a units of:
question_answer7) Which one of the following parts of throat of human body produces sound?
question_answer8) Consider the following statements: Statement 1: Light can travels in vacuum. Statement 2: Sound can travels in vacuum. Which one of the following is correct about the above statements?
question_answer9) Which one of the following parts of our ear vibrates by sound waves coming from outside or air?
question_answer10) Which one of the following is the property of sound waves?
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