Download App

Periodic Classification of Elements — Science STD 10 — Question

CBSE BoardEnglish MediumSTD 10SciencePeriodic Classification of Elements2 Marks
Question
What happens to the image distance in the normal human eye when we decrease the distance of an object, say 10m to 1m? Justify your answer.
✓

Answer

If the object distance is greater than 25cm the image is always formed on the retina as the focal length of the human eye lens gets adjusted depending on the object distance. This special property of human eye is called as power of accommodation. Hence, image distance will remain same if object distance changes from 10m to 1m.

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 "[2 Mark Questions]" from Periodic Classification of Elements→Periodic Classification of Elements — all question types→Science STD 10 question papers→CBSE Board STD 10 question papers→CBSE Board question paper generator→

Similar questions

  1. Name the products formed when sodium hydrogen carbonate is heated.
  2. Write the chemical equation for the reaction involved in the above.
→
What is the scientific name of:
  1. Womb.
  2. Birth canal?
→
What job is done by the kidneys?
→
Explain how, it would benefit deep sea divers if humans also had gills.
→
The resistance of a metal wire of length 1m is $26 Ω$ at 20°C. If the diameter of the wire is 0.3mm, what will be the resistivity of the metal at that temperature?
→
Why does a new aluminium vessel lose shine so soon after use?
→
What are the advantages of nuclear energy?
→
Draw a circuit diagram to show how 3 bulbs can be lit from a battery so that 2 bulbs are controlled by the same switch while the third bulb has its own switch.
→
Why are coal and petroleum called fossil fuels?
→
What p.d. is needed to send a current of 6A through an electrical appliance having a resistance of $40\Omega$?
→