Question
Which mirror is used as a reflector? Why?
✓
Answer
- Concave mirrors are used as reflectors in torches, vehicle headlights and searchlights.
- To get a powerful parallel beam of light.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
A charge of 400C flows through a conductor for 13 minutes and 20 seconds. Find the magnitude of the current flowing through the conductor.
The frequency of tuning fork is 484 Hz. What is the time period?
The following shows the electronic distribution diagram for the formation of MgCl2 molecule. Based on this answer the following questions.
(a) Which of the above atom loses electrons to form a cation?
(b) Which of the above atom gain electrons to form an anion?
(c) How many electrons are transferred from Mg to Cl?
(d) Write the name of the anion formed.
(e) Which noble gas configuration do these ions resemble?
(f) Write the electronic configuration of Mg2+ & Cl–
(a) Which of the above atom loses electrons to form a cation?(b) Which of the above atom gain electrons to form an anion?
(c) How many electrons are transferred from Mg to Cl?
(d) Write the name of the anion formed.
(e) Which noble gas configuration do these ions resemble?
(f) Write the electronic configuration of Mg2+ & Cl–
Identify the given plant. How does it adapt itself to its habitat?
Write any four uses of acids.
Write the conditions in the use of Paid and Proprietary Software.
A piece of iron of volume $40 cm^3$ whose density is $6.8 g / cm ^3$. Find the mass of iron.
→- What do you infer if
(i) Distance – time graph is straight line.
(ii) Velocity time graph is curved.
(iii) Displacement time is zig zag.
Define the critical angle.
Explain amitosis.