Questions

Q:

photosynthesis takes place faster in

A) darkness B) red light
C) white light D) yellow light
 
Answer & Explanation Answer: C) white light

Explanation:

As far as the rate of photosynthesis is concerned, it is fastest in white light making the rate of photosynthesis maximum.

After White, We Have Violet Light Where Photosynthesis Occur To A Higher Extent as It Has The Shortest Wavelength Hence Has The Max Energy.

 

So The Order Is  ::  white>violet>blue.

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Filed Under: Physics
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24 11631
Q:

A potentiometer wire is 100 cm long and a constant potential difference is maintained across it. Two cells are connected in series first to support one another and then in opposite direction. The balance points are obtained at 50 cm and 10 cm from the positive end of the wire in the two cases. The ratio of the emf's is :

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

Explanation:

In series : E1 + E2 = K(50)

In parallel : E1 - E2 = K(10)

E1 + E2 / E1 - E2 = 5/1

=> E1/E2 = 3/2

The emf's are in the ratio of 3:2.

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Filed Under: Physics
Exam Prep: AIEEE

40 11628
Q:

The Capacity of a Communication Channel is Measured in

A) Band rate B) Band width
C) Data flow D) Bit capacity
 
Answer & Explanation Answer: B) Band width

Explanation:

The path that data takes from source to destination is called a Channel. A channel is a communication medium. A channel has a certain capacity for transmitting information. 

 

The "capacity" of a channel is the theoretical upper-limit to the bit rate over a given channel that will result in negligible errors. Channel capacity is often measured by its Bandwidth in Hz or its data rate in bits per second.

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15 11625
Q:

Who invented Radar?

A) Henrey Backquerel B) Max Planck
C) Robert Watson Watt D) Humphrey Davy
 
Answer & Explanation Answer: C) Robert Watson Watt

Explanation:

Who_invented_Radar1556273104.jpg image

RADAR stands for Radio Detection and Ranging.

Radar is a detecting system that uses radio waves to determine the range, angle, or velocity of objects. It operates in the ultra-high-frequency of the radio-frequency (RF) spectrum.

 

Uses ::

To detect

aircraft,

ships,

spacecraft,

guided missiles,

motor vehicles,

weather formations, and

terrain.

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Filed Under: Inventions
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18 11617
Q:

World Blood Donar Day is observed on ___________

A) 14 - June B) 24 - June
C) 14 - November D) 24 - November
 
Answer & Explanation Answer: A) 14 - June

Explanation:
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40 11614
Q:

How many logical drives is it possible to fit onto a physical disk?

Answer

Maximum of 24 logical drives. The extended partition can only have 23 logical drives.

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Subject: Hardware

22 11610
Q:

What is Black, when Clean and White, when Dirty?

A) Shoes B) Car
C) Chalkboard D) None
 
Answer & Explanation Answer: C) Chalkboard

Explanation:

It is Blackboard or Chalkboard which is Black when clean, and as you write on it with white chalk it becomes dirty in White color.

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12 11607
Q:

The Minimum Alternative Tax (MAT) was introduced in the Budget of the Government of India for the year

A) 1991-92 B) 1992-93
C) 1995-96 D) 1996-97
 
Answer & Explanation Answer: D) 1996-97

Explanation:
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Filed Under: Indian Economy

26 11605