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Latest Popular Rated
Q:

In total internal reflection, the light travel from

A) rarer to denser medium and it occurs with no loss of intensity B) denser to rarer medium and it occurs with no loss of intensity
C) rarer to denser medium and it occurs with loss of intensity D) denser to rarer medium and it occurs with loss of intensity
 
Answer & Explanation Answer: B) denser to rarer medium and it occurs with no loss of intensity

Explanation:

According to wave theories, for Total internal reflection tohappen: Light must travel from denser medium to rarer medium. Angle of incidence should be greater than critical angle. As in case of TIR, the image is perfectly clear, it implies that there has been no loss of intensity.

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Filed Under: Physics
Exam Prep: Bank Exams

1 1001
Q:

Which one of the following pairs of lakes is connected by Soo Canal?

A) Superior and Michigan B) Superior and Huron
C) Huron and Ontario D) Huron and Erie
 
Answer & Explanation Answer: B) Superior and Huron

Explanation:

They are located on the St. Marys River between Lake Superior and Lake Huron, between the Upper Peninsula of the US state of Michigan and the Canadian province of Ontario.

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Filed Under: General Awareness
Exam Prep: Bank Exams

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Q:

The difference between compound interest and simple interest on Rs. 5000 for 2 years at 8% per annum payable yearly is

A) Rs.30 B) Rs.31
C) Rs.33 D) Rs.32
 
Answer & Explanation Answer: D) Rs.32

Explanation:
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Filed Under: Simple Interest
Exam Prep: Bank Exams

1 1205
Q:

Two men standing on same side of a pillar 75 metre high, observe the angles of elevation of the top of the pillar to be 30° and 60° respectively the distance between two men is

A) 100 3m B) 100m
C) 753m D) 253m
 
Answer & Explanation Answer: A) 100 3m

Explanation:
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Filed Under: Height and Distance
Exam Prep: Bank Exams

3 1334
Q:

If 3sinθ+4cosθ=5 (0<θ<90°) then the value of sinθ is

A) 1/5 B) 2/5
C) 3/5 D) 4/5
 
Answer & Explanation Answer: C) 3/5

Explanation:
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Filed Under: Simplification
Exam Prep: Bank Exams

0 1181
Q:

A, B and C are three points on a circle with centre O. The tangent at C meets BA produced at T. If ∠ATC = 30° and ∠ACT = 48°,then what is the value of ∠AOB ?

A) 78° B) 96°
C) 102° D) 108°
 
Answer & Explanation Answer: D) 108°

Explanation:
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Filed Under: Simplification
Exam Prep: Bank Exams

0 1249
Q:

If O is the centre of a circle of radius 5 cm. At a distance of 13 cm from O, a point P is taken. From this point, two tangents PQ and PR are drawn to the circle. Then , the area of quadrilateral PQOR is

A) 60 cm2 B) 32.5 cm2
C) 65 cm2 D) 30 cm2
 
Answer & Explanation Answer: A) 60 cm2

Explanation:
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Filed Under: Volume and Surface Area
Exam Prep: Bank Exams

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Q:

If ab+ba=1, then the value of a3+b3 is

A) 1 B) 0
C) -1 D) 2
 
Answer & Explanation Answer: B) 0

Explanation:
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Filed Under: Simplification
Exam Prep: Bank Exams

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