A Lens Forms an Erect Image of a Real Object

question 56

Multiple Choice

A lens forms an erect image of a real object.The image is twice the size of the object and appears to be 40 cm from the lens.Determine the power of the lens in diopters (D) .

• A)There is not sufficient information.
• B)-2.5 D
• C)+2.5 D
• D)+7.5 D
• E)None of these is correct.

Calculate final payment amounts after discounts and payments.

Understand and calculate equivalent single rates of discounts from a series.

Understand and calculate the outstanding balance after partial payments.

Calculate the amount of discount applied to transactions.

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Definitions:

Treaty of Sèvres

A 1920 treaty that delineated the partitioning of the Ottoman Empire after World War I, leading to significant territorial losses for the Ottomans and the establishment of new nations.

Turkish Ottoman Empire

A vast empire founded at the end of the 13th century in northwestern Anatolia by the Turkic leader Osman I, which at its height spanned three continents, including much of Southeastern Europe, Western Asia, and North Africa, until its dissolution in 1922.

Amritsar Massacre

A tragic event in 1919, when British troops fired on a peaceful gathering, killing hundreds of Indians, which intensified the struggle for Indian independence.

Indian Nationalist Movement

The collective efforts of various groups and individuals to achieve independence from British colonial rule, culminating in India's independence in 1947.