Questions

Q:

Consider the electromagnetic radiations having wavelengths 200 nm, 500 nm and 1000 nm. Which wavelength (s) of the following can make visual sensation to a human eye?

A) 200 nm and 500 nm B) 500 nm and 1000 nm
C) 500 nm only D) 200 nm and 1000 nm
 
Answer & Explanation Answer: C) 500 nm only

Explanation:
Visual image of human eye is 390-700 nanometer. So, approximate value is 500 nanometer only.
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Filed Under: Physics
Exam Prep: Bank Exams

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Q:

What is EGP?

Answer

It is the protocol the routers in neighboring autonomous systems use to identify the set of networks that can be reached within or via each autonomous system.

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Subject: Networking
Job Role: Network Engineer

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Q:

Which is the first talkie film in India?

A) Alam Ara B) Raja Harishchandra
C) Pundalik D) Sant Tukaram
 
Answer & Explanation Answer: A) Alam Ara

Explanation:

The first talkie film in India was Ardeshir Irani released Alam Ara, on 14 March 1931.

 

Irani later produced the first south Indian talkie film Kalidas directed by H.M. Reddy released on 31 October 1931.

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Filed Under: Indian History
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Q:

Plants developing in dry conditions are

A) lithophytes B) hydrophytes
C) mesophytes D) xerophytes
 
Answer & Explanation Answer: D) xerophytes

Explanation:

Plants developing in dry conditions are called as xerophytes.

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Filed Under: General Science
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Q:

Two metallic wires made from copper have same length but the radius of wire 1 is half of that of wire 2. The resistance of wire 1 is R. If both the wires are joined together in series, the total resistance becomes

 

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

Explanation:

So, resistance of Wire 2 is R/4 as radius is half of wire 1, so area would be 4 times of wire 1.

Now for resistance in series. R= R1 + R2.

Therefore, Final R= R + R/4 = 5R/4

 

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Filed Under: Physics
Exam Prep: Bank Exams

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Q:

Movement of cell against concentration gradient is called

A) active transport B) diffusion
C) osmosis D) passive transport
 
Answer & Explanation Answer: A) active transport

Explanation:

The only transport method that can move species against their concentration gradient i.e, from low to high concentration is called Active transport.

 

Facilitated diffusion only moves species down their concentration gradient i.e, from high to low concentration.

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Filed Under: Biology
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Q:

Which event occurs during interphase?

A) Centrioles appear B) Spindle fibers begin to form
C) The cell grows D) Centromeres divide
 
Answer & Explanation Answer: C) The cell grows

Explanation:

The cell carries out the metabolic processes and it grows during interphase.

The cell cycle has three phases that must occur before mitosis, or cell division happens. These three phases are collectively known as interphase. They are G1, S, and G2.

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Filed Under: Biology
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Q:

Oxidation number of S8?

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

Explanation:

S8 is an elemental form of sufur. In elemental form it can't be reduced or oxidized. Hence, it oxidation number is zero and thus sulfur is zerovalent here.

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Filed Under: Chemistry
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