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9th CBSE
IMPORTANT
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For doing the experiment on the verification of laws of reflection of sound,

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Important Questions on Multiple-Choice Questions 1

EASY
9th CBSE
IMPORTANT
LIVING SCIENCE PHYSICS 9>Chapter 7 - Multiple-Choice Questions 1>Multiple-Choice Questions (BASED ON PRACTICAL SKILLS IN SCIENCE)>Q 6
If the reflecting surface used is a wooden board covered with woollen cloth, then the reflected sound heard at the end of tube B will be
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EASY
9th CBSE
IMPORTANT
LIVING SCIENCE PHYSICS 9>Chapter 7 - Multiple-Choice Questions 1>Multiple-Choice Questions (BASED ON PRACTICAL SKILLS IN SCIENCE)>Q 7
The distance between two consecutive compressions of a sound wave is 5 cm. The wavelength of the wave is.
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9th CBSE
IMPORTANT
LIVING SCIENCE PHYSICS 9>Chapter 7 - Multiple-Choice Questions 1>Multiple-Choice Questions (BASED ON PRACTICAL SKILLS IN SCIENCE)>Q 8
An incident sound wave strikes a reflecting surface at an angle of 50°. What is the angle between the incident wave and the reflected wave?
EASY
9th CBSE
IMPORTANT
LIVING SCIENCE PHYSICS 9>Chapter 7 - Multiple-Choice Questions 1>Multiple-Choice Questions (BASED ON PRACTICAL SKILLS IN SCIENCE)>Q 9
The mass of a solid iron cube of side 4 cm is to be determined. Of the four spring balances available, the one best suited for this purpose would have
MEDIUM
9th CBSE
IMPORTANT
LIVING SCIENCE PHYSICS 9>Chapter 7 - Multiple-Choice Questions 1>Multiple-Choice Questions (BASED ON PRACTICAL SKILLS IN SCIENCE)>Q 10
The measuring range of a measuring cylinder is 50 mL. If its least count is 0.5 mL, then the space between 15 mL and 20 mL should be divided into 
EASY
9th CBSE
IMPORTANT
LIVING SCIENCE PHYSICS 9>Chapter 7 - Multiple-Choice Questions 1>Multiple-Choice Questions (BASED ON PRACTICAL SKILLS IN SCIENCE)>Q 11
For determining the density of a copper piece using a spring balance and a measuring cylinder, Seema carried out the following procedure:
i. Noted the water level in the measuring cylinder without the copper piece.
ii. Immersed the copper piece in the water.
iii. Noted the water level in the measuring cylinder with the copper piece inside it.
iv. Removed the copper piece from the water and immediately weighed it using a spring balance.
The wrong step in the procedure is
EASY
9th CBSE
IMPORTANT
LIVING SCIENCE PHYSICS 9>Chapter 7 - Multiple-Choice Questions 1>Multiple-Choice Questions (BASED ON PRACTICAL SKILLS IN SCIENCE)>Q 12

Four measuring cylinders with different least counts are shown in figures A, B, C and D. The most suitable cylinder for measuring the volume of a cube of side nearly 1 cm is.

EASY
9th CBSE
IMPORTANT
LIVING SCIENCE PHYSICS 9>Chapter 7 - Multiple-Choice Questions 1>Multiple-Choice Questions (BASED ON PRACTICAL SKILLS IN SCIENCE)>Q 13
Three students A, B, and C determined the volume of the solid by immersing it in water in the overflow cans set-up as shown. The result obtained will be wrong for
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