Question

i) Aisha is 98cm tall. Minal is 12cm Shorter than Aisha.How tall is Minal?​

Answer 1

Answer:

According to new cartesian sign convention,

Object distance, u=−15 cm

Focal length of the concave mirror, f=−10 cm

Height of the object, h0=2 cm

According to mirror formula, v1+u1=f1

⇒v1=f1−u1=−101−1−51=−101+151

or v=−30 cm

The image is formed at a distance of 30 cm from the mirror on the same side of the object.

It is a real image.

Magnification of the mirror, m=u−v=h0h1

⇒−15−(−30)=2h1⇒hI=−4 cm.

Negative sign shows that image is inverted.

The image is real, inverted, of size 4 cm at a distance of 30 cm in front of the mirror

Answer 2

Answer:

86 cm

Step-by-step explanation:

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