Exams


Q:

The colour of a thin film is due to

A) Scattering B) Dispersion
C) Diffraction D) Interference
 
Answer & Explanation Answer: D) Interference

Explanation:

In physics, interference is a phenomenon in which two waves superpose to form a resultant wave of greater, lower, or the same amplitude. The color bands in thin films are a result of wavelength dependent interference caused by the close spacing of the surfaces of the film.

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Q:

Biological membranes are composed of

A) Phospholipids B) Proteins
C) Carbohydrate groups D) All of the above
 
Answer & Explanation Answer: D) All of the above

Explanation:

Biological membranes are composed of phospholipids, Proteins and Carbohydrate groups attached to lipids and proteins.

 

Biological_membranes_are_composed_of1559036778.jpg image

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Q:

In the following question, a word has been written in four different ways out of which only one is correctly spelt. Select the correctly spelt word

A)

Auixiliary

B)

Auxiliary

C)

Auxiliarry

D)

Auixliary

 
Answer & Explanation Answer: C)

Auxiliarry



Explanation:
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Q:

9 women can complete a work in 50 days. If more 6 women were added to them, how many days before the work can be completed?

A) 30 B) 20
C) 15 D) 25
 
Answer & Explanation Answer: B) 20

Explanation:
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Q:

Term ' Gambit ' is associated with which of the following sport?

A) Basketball B) Chess
C) Boxing D) Golf
 
Answer & Explanation Answer: B) Chess

Explanation:
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Q:

Which  of  the  following  statements  about the    Shiromani    Gurudwara    Prabandhak Committee (SGPC) are correct?

1.It  began  as  the  political  wing  of  the Singh Sabhas in the late 19th century.

2.It  was  formed  in  1920 as  part  of  the upcoming Akali movement.

3.It was founded to reclaim control of the Sikh   shrines   from   the   government manipulated loyalist committees.

4.It  formed  the  Akali  Dal to  coordinate groups  (Jathas)  to  reclaim  control  of the shrines.

Select  the  correct  answer  using  the  code given below.

A) 1, 3 and 4 B) 2, 3 and 4
C) 2 and 4 only D) 2 and 3 only
 
Answer & Explanation Answer: B) 2, 3 and 4

Explanation:

All are correct except 1. The Shiromani Gurdwara Parbandhak   Committee(orSGPC) is an organization in India responsible for the management of gurdwaras, Sikh places of worship in three states of Punjab, Haryana,   and Himachal Pradesh and union territory of Chandigarh. SGPC also administers Harmandir Sahibin Amritsar.  In  1920,  Sikhs held  their  scheduled  meeting  and elected     a     bigger     committee consisting  of  175   members  and named     it Shiromani     Gurdwara Parbandhak Committee.

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Q:

Find the resistance (in mega Ω) of a wire of length 20m, cross sectional area 1 cm2 and made of a material of resistivity 200 Ωm.

A) 40 B) 4000
C) 80 D) 2000
 
Answer & Explanation Answer: A) 40

Explanation:
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Q:

Centrifugal force increases with

A) Temperature B) Pressure
C) Acceleration D) Humidity
 
Answer & Explanation Answer: C) Acceleration

Explanation:

Centrifugal force is the fictitious force that pulls out from the center on the body we feel while moving in the circular path. It increases with the rate of rotation of the axis i.e, acceleration of the body.

 

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