Question : Dioptre is the unit of:

Option 1: power of a lens

Option 2: focal length of a lens

Option 3: light intensity

Option 4: sound intensity

Question : If the sides of an equilateral triangle are increased by 1 metre, then its area is increased by $\sqrt3$ sq. metre. The length of any of its sides is:

Option 1: $2$ metres

Option 2: $\frac{5}{2}$ metres

Option 3: $\frac{3}{2}$ metres

Option 4: $\sqrt3$ metres

Question : The area of a regular hexagon with side '$a$' is:

Option 1: $\frac{3\sqrt3}{4}a^2$ sq. unit

Option 2: $\frac{12}{2\sqrt3}a^2$ sq. unit

Option 3: $\frac{9}{2\sqrt3}a^2$ sq. unit

Option 4: $\frac{6}{2\sqrt3}a^2$ sq. unit

Question : Directions: Select the correct option that indicates the arrangement of the given words in a logical and meaningful order.
1. Hectometre
2. Millimetre
3. Decimetre
4. Decametre
5. Kilometre

Option 1: 2, 3, 4, 1, 5

Option 2: 2, 3, 5, 1, 4

Option 3: 3, 2, 4, 1, 5

Option 4: 3, 2, 5, 1, 4

Question : Directions: Arrange the following in ascending order.
1. Centimetre
2. Kilometre
3. Decimetre
4. Metre

Option 1: 1, 3, 4, 2

Option 2: 2, 4, 3, 1

Option 3: 3, 1, 2, 4

Option 4: 4, 2, 1, 3