Download App

Human Eye and Colourful World — Science STD 10 — Question

CBSE BoardEnglish MediumSTD 10ScienceHuman Eye and Colourful World1 Mark
MCQ
The power of accommodation is achieved by by changing:
  • A
    Curvature of eye lens
  • B
    Focal length of eye lens
  • C
    Both A and B
  • D
    Neither A nor B
✓

Answer

  1. Both A and B

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "M.C.Q-[Phy-1M]" from Human Eye and Colourful World→Human Eye and Colourful World — all question types→Science STD 10 question papers→CBSE Board STD 10 question papers→CBSE Board question paper generator→

Similar questions

The human eye can focus objects at different distances by adjusting the focal length of the eye-lens. This is due to:
  1. Presbyopia.
  2. Accommodation.
  3. Near-sightedness.
  4. Far-sightedness.
→
What is the resistance of a wire if its length is doubled, 
→
Which statement/statement is/ are correct?
  1. An ammeter is connected in series in a circuit and a voltmeter is connected in parallel.
  2. An ammeter has a high resistance.
  3. A voltmeter has a low resistance.
→
An object is placed 20cm in front of a plane mirror. The mirror is moved 2cm towards the object. The distance between the positions of the positions of the original and final images seen in the mirror is:
→
A boy is standing in front of and close to a special mirror. He finds the image of his head bigger than normal, the middle part of his body of the same size, and his legs smaller than normal. The special mirror is made up of three types of mirrors in the following order from top downwards:
  1. Convex, Plane, Concave.
  2. Plane, Convex, Concave.
  3. Concave, Plane, Convex.
  4. Convex, Concave, Plane.
→
A device for producing electric current is called a:
→
A student focussed the Sun rays using an optical device ‘X’ on a screen S as shown.

From this it may be concluded that the device ‘X’ is a (select the correct option)
→
The real image formed by a concave mirror is smaller than the object if the object is:
→
The most important safety method used for protecting home appliances from short circuiting or overloading is:
  1. Earthing.
  2. Use of fuse.
  3. Use of stabilizers.
  4. Use of electric meter.
→
Choose the correct option.
Which of the following property of a proton can change while it moves
freely in a magnetic field? (There may be more than one correct answer.),
→