UNIT TEST (190501)

UNIT TEST
CLASS 10

Give the reason of rainbow formation and twinkling of star.

If the focal length of concave lens is 100cm find the power of lens?

Define iris, retina, lens, ciliary muscles, cornea

What is myopia.show it with diagram.

What is hypermetropia. Show it with diagram.

What is presbyopia? How it occur?

If the angle of elevation is 45⁰ and the length of shadow of a tower is 45m find the height of the tower.

If sinθ=4/5 find the value of tanθ+cotθ+secθ+cosθ

If 4 tanθ = 3,then 4sinθ - cosθ / 4sinθ+ cosθ

Why sky looks black to astronauts?

Why the colour of sky is blue?   

CLASS 9 

If the mass of a body is 450g what force require to move this body with acceleration 4m/s² 

What will the momentum of a body if the mass of a body is 500g and moving with velocity 45km/h

What will the equation of motion if body moving with constant velocity?

A body start from rest and move with speed 4m/s for 1min mass of 10N find force?

What is latent heat of fussion and latent heat of vaporization ?

What force need to move a body of 4 kg with uniform velocity of 2m/s 

Write the application of newton first, second and third law.

Define motion.

Convert 240m/s to km/h , 108km/h to m/s

If the mass of a gun is 50kg and mass of bullet is 100g if bulllet is fired with velocity of 300km/h find the velocity of gun recoil back.

CLASS 8 

Add the following 2x+4x+6y+7z+6x+5y+8z+9x+2x+4x+5z-2x-5z

Find (105)² by identity

Find the square root of 7225 , 7742 ,11025 and 11664

Solve the following

Ø 2x+5= 15

Ø 2x+8y+10-6y+x-2y+2=0

Ø 8x+10= 4x + 42

Ø 4x-12= 3x+12

Write a essay of independence day in 100 words.

Write about microorganism in 50 words.

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