| 1 |
The wavelength of red colour is. |
700 nm
800 nm
900 nm
600 nm
|
| 2 |
Dolphins can hear sound underwater from up to ............ away |
15 km
20 km
25 km
30 km
|
| 3 |
An object produce a sound with a frequency of 50 Hz. Find its tiem period. |
0.01 sec
0.03 sec
0.02 sec
0.04 sec
|
| 4 |
The lowest pointof a wave is................ |
Crest
Amplitude
Peak
Trough
|
| 5 |
------------ waves are produced in stretched string. |
Longitudinal wave
Elecromagnetic wave
Transverse wave
None of these
|
| 6 |
Wave are of .............. types. |
Two
Three
Four
Five
|
| 7 |
Sound is a form of. |
Energy
Wave
Frequency
intensity
|
| 8 |
Speed of sound in water is |
1000 ms-1
1500 ms-1
900 ms-1
2000 ms-1
|
| 9 |
What type of wave does not need matter to travel through. |
Mechaical
Electromagnetic
Sound
Transverse
|
| 10 |
What is transferred by teh movement of waves. |
matter
energy
both a and b
None of these
|
.gif)
Home
News
Colleges
Courses
Admission
Lectures
Online Test
Past Papers
Date Sheets
Results
Study Abroad
Jobs
Tutors
More
Apps
