8th Standard Science Chapter-5

8th Standard Science quiz Chapter-5

Created on By 52fd849a905aedf0249df9e69d61b55a?s=32&d=mm&r=gwefru

8th Standard Science Chapter 5


1 / 10

Q11. Which of the following graph represents the correct variation of angle of incidence (i) and angle of deviation (δ)?

2 / 10

Q12. Figure a, b, c respectively; indicate the point in case of:

sci ch11 image3

3 / 10

Q13. In which of the following cases will no dispersion take place when sunlight passes through it?

sci ch11 image4

4 / 10

14. A: Astigmatism usually is caused by an irregularly shaped cornea.

B: Rainbow is the natural phenomenon in which dispersion takes place.

5 / 10

Q15. Having two eyes facilitates in:

A: Increasing the field of view

B: Bringing three dimensional view

C: Developing the concept of distance/size.

Then the correct option is/are:

6 / 10

Q11. Two electric bulbs have resistances in the ratio 1:2. If they are joined in series, the energy consumed in them is in the ratio.

7 / 10

Q12. At a given time, a house is supplied with 100 A at 220 V. How many 75 W, 220 V light bulbs could be switched on in the house at the same time (if they are all connected in parallel)?

8 / 10

Q13. If the current flowing through a fixed resistor is halved, the heat produced in it will become:

9 / 10

Q14. You are given four ammeters A, B, C and D having least counts mentioned below:

(I) Ammeter A with least count 0.25 A

(II) Ammeter B with least count 0.5 A

(III) Ammeter C with least count 0.05 A

(IV) Ammeter D with least count 0.1 A

Which of the ammeters would you prefer for doing an experiment to determine the equivalent resistance of two resistances most accurately, when connected in parallel?

10 / 10

Q15. In the given figure, the resistors

sci ch12 image4

Your score is

The average score is 0%


Leave a Reply