Question # 1

Wave are of .............. types.

Choose an answer

Two

Three

Four

Five

Sound waves are not.

Choose an answer

Compressional waves

Transverse waves

Mechnical waves

Low frequency waves

Dolphins can hear sound underwater from up to ............ away

Choose an answer

15 km

20 km

25 km

30 km

An object produce a sound with a frequency of 50 Hz. Find its tiem period.

Choose an answer

0.01 sec

0.03 sec

0.02 sec

0.04 sec

Speed of sound in water is

Choose an answer

1000 ms-1

1500 ms-1

900 ms-1

2000 ms-1

Which of the following animals can respond to highest frquency.

Choose an answer

Bat

Cat

Frog

Dolphin

What type of wave does not need matter to travel through.

Choose an answer

Mechaical

Electromagnetic

Sound

Transverse

Which of the following features is the height of the wave from the rest position or mid line.

Choose an answer

Frequency

Wavelength

Amplitude

Pitch

The speed of sound in air is.

Choose an answer

100 m/s

300 m/s

100 m/s

330 m/s

Which of the following animals can respond to lowest frequency.

Choose an answer

Cat

Cow

Dog

Dolphin

More Classes

Other Links

General Science 7th Class English Medium Chapter 9 Online Test MCQs With Answers

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer