F4 Chapter 6.4 and 6.5 Thin Lens Formula , Optical instrument

Which of the following graph below is true?

• 
• 
• 
• 

What is the Y-intercept represent?

• focal length, f

• Magnification, M

• power, p

An object is place at 20cm away from a convex lens with a focal length of 10cm. Calculate the distance of the image formed from the centre of the convex lens

• 10cm

• 15cm

• 5cm

• 20cm

4. An object is placed at 10cm away from a concave lens with focal length of 5cm. Calculate the distance of the image formed from the centre of the lens.

• A.3.33cm
• B. 5.55cm
• C. 6.67cm
• D. 10cm

An object is placed at 30cm away from a convex lens with focal length of 20cm. Determine linear magnification scale.

• 1

• 2

• 3

• 0

An object with height of 5 cm is place at 30cm away from a convex lens with focal length of 10cm. Determine the size of the image formed.

• 5.00cm

• 2.50cm

• 6.67cm

• 3.33cm

An object with height 10cm is placed at 6cm away from a concave lens with focal length of 10cm. Find the height of the image formed

• 15.56cm

• 3.33cm

• 25.0cm

• 6.25cm

What is the characteristics of the image formed by a compound microscope?

• Virtual, inverted, magnified

• Real, inverted, magnified

• Virtual, upright magnified

• Real, upright, magnified

• A

• B

• C

• D

Which of the following statement is correct about the astronomical telescope?

• The power of the objective lens > the power of the eyepiece

• The power of the objective lens < the power of the eyepiece

• The focal length of the objective lens= the focal length of the eyepiece

• The focal length of the objective lens< the focal length of the eyepiece