Kaleidoscope - class-V
Learn about kaleidoscopes, their construction using mirrors, pattern formation, and how they work with light and reflection - for Class V students
Questions
Which of the following is true for kaleidoscope?
- Same pattern can't be seen twice
- Same pattern is seen after equal intervals
- Patterns are seen randomly
- No pattern seen
Artists use KALEIDOSCOPE for
- Entertaining themselves
- Getting ideas for new patterns
- Discovering new properties of light
- None of these
Which of the following is(are) needed for making a KALEIDOSCOPE
- Bangles of black colour
- Black coloured wooden box
- Tiny colourful glass fragments
- None of these
How many holes are there in a KALEIDOSCOPE:
- 1
- 2
- 5
- Cant be predicted
How many plane mirrors are required for a kaleidoscope?
- 1
- 2
- 3
- 4
Designs of wallpapers and fabrics are obtained with the help of:
- periscopes
- kaleidoscopes
- telescopes
- microscopes
Minimum number of mirrors used in a kaleidoscope is:
- 1
- 2
- 3
- 4
Shall a kaleidoscope work in a dark room?
- Yes
- No
- Sometimes
- Can't say
If the tube of a kaleidoscope is filled with thick black smoke, the pattern:
- will change and will not be observable
- will not change and will not be observable
- will not change and will be observable
- will change and will be observable
What creates a colorful pattern through light entering the other end of Kaleidoscope?
- Refraction from mirrors
- Reflection from mirrors
- Diffraction from mirrors
- Deviation from mirrors
When does the tumbling of coloured objects presents varying colours and patterns in kaleidoscope?
- When kaleidoscope tube is stood erect
- When kaleidoscope tube is tilted at $180^0$
- When kaleidoscope tube is rotated
- When kaleidoscope tube is inverted
How many rectangular mirrors are there in kaleidoscope which yields to pattern filling entire field?
- 1
- 5
- 3
- 4
Who invented Kaleidoscope ?
- Sir David Brewster
- Sir Isaac Newton
- Albert Einstein
- Dr. Homi Bhabha
At what angle the rectangular mirrors are set to each other in Kaleidoscope?
- 90 degree
- 30 degree
- 60 degree
- 120 degree
What is Kaleidoscope?
- A cylinder with mirrors containing loose colored objects such as beads, pebbles, and bits of glass
- A cylinder with mirrors
- A cylinder containing loose colored objects such as beads, pebbles, and bits of glass
- None of the above
In kaleidoscope the part containing objects to be viewed is known as :
- Object Chamber
- Object House
- Object Lobby
- None of the above
Modern Kaleidoscopes are made of what?
- Brass Tubes
- Stained Glass
- Wood
- All of the above
Some special kaleidoscopes which doesn't include objects at all are known as:
- Teleidoscopes
- Telescopes
- Spy glass
- None of above
An object is kept between two plane mirrors inclined at an angle $120$ from each other; calculate the number of images which are formed if the object is not on the bisector/on the bisector $3$
- $\displaystyle \frac {3}{3}$
- $\displaystyle \frac {3}{2}$
- $\displaystyle \frac {2}{2}$
- $\displaystyle \frac {2}{3}$