Light appears to travel in straight line...

Light appears to travel in straight lines because

light consists of very small particles

the frequency of light is very small

the velocity of light is different from different colours

the wavelength of light is very small.

Text Solution

Verified by Experts

The correct Answer is:

The wavelength of light is very small `(4xx10^(-5)" to " 7xx10^(-5)cm)` compared to the sizes of the obstacles or apertures ordinarily used and as a result no diffraction (bending of light rays) can be detected.

Topper's Solved these Questions

KARNATAKA CET 2001
KCET PREVIOUS YEAR PAPERS|Exercise Physics|60 Videos
KARNATAKA CET 2003
KCET PREVIOUS YEAR PAPERS|Exercise PHYSICS|60 Videos

Similar Questions

Explore conceptually related problems

Inspite of the wave nature of light, why is light assumed to travel in a straight line?

Define slope of a straight line ?

Answer the following questions: (e) Ray optics is based on the assumption that light travels in a straight line. Diffraction effects (observed when light propagates through small apertures/slits or around small obstacles) disprove this assumption. Yet the ray optics assumption is so commonly used in understanding location and several other properties of images in optical instruments. What is the justification?

The first organisms to appear on earth were more like plants because

A body is travelling in a straight line path with a velocity given by v = ax where 'a' is a constant such that a = 5 units. What will be the work done by the force acting during its displacement from x = 0 to x = 2m ?

Classify the following as motion along a straight line, circular or oscillatory motion Motion of horse pulling a cart on a straight road.

Classify the following as motion along a straight line, circular or oscillatory motion Motion of a train on a straight bridge.

There are 10 points in a plane out of these points no three are in the same straight line except 4 points which are collinear. How many (i) straight lines (ii) trian-gles (iii) quadrilateral, by joining them?

KCET PREVIOUS YEAR PAPERS-KARNATAKA CET 2002-PHYSICS (MCQ.s)

The light reflected by a plane mirror may form a real image
Text Solution
|
A convex lens is made up of three different materials as shown in the ...
Text Solution
|
Light appears to travel in straight lines because
Text Solution
|
In Young's double slit experiment, the central bright fringe can be id...
Text Solution
|
A railway engine whistiling at a constant frequency moves with a const...
Text Solution
|
The tension of a stretched string is increased by 69%. In order to kee...
Text Solution
|
Under the same conditions of termperature and pressure the velocity of...
Text Solution
|
64 small drops of mercury, each of radius r and charge q coalesce to f...
Text Solution
|
Two capacitors of capacitances 3muF and 6muF are charged to a potentia...
Text Solution
|
The resultant of two forces, one double the other in magnitude, is per...
Text Solution
|
The load versus elongation graph for four wires of the same material i...
Text Solution
|
One kilogram of ice at 0^(@)C is mixed with one kilogram of water at 8...
Text Solution
|
A carnot's engine is made to work between 200^(@)C and 0^(@)C first an...
Text Solution
|
An object is placed 12 cm to the left of a converging lens of focal le...
Text Solution
|
The resistance of an incandescent lamp is
Text Solution
|
A superconductor exhibits perfect
Text Solution
|
A magnet is dropped down an infinitely long vertical copper tube
Text Solution
|
Whenever a hydrogen atom emits a photon in the Balmer series
Text Solution
|
The SI unit of radioactivity is
Text Solution
|
An ammeter and a voltmeter are joined in series to a cell. Their readi...
Text Solution
|