1
Q:

A ball is thrown vertically upwards. Assuming the air resistance to be constant and cosiderable:

A) the time of ascent < the time of descent B) the time of ascent > the time of descent
C) the time of ascent = the time of descent D) none of these

Answer:   A) the time of ascent < the time of descent



Explanation:
Subject: Physics
Q:

Lightning heats the surrounding air to

A) 300 deg Cent B) 3000 deg Cent
C) 30000 deg Cent D) 300000 deg Cent
 
Answer & Explanation Answer: C) 30000 deg Cent

Explanation:

Lightning is extremely hot — a flash can heat the air around it to temperatures five times hotter than the sun’s surface. This heat causes surrounding air to rapidly expand and vibrate, which creates the pealing thunder we hear a short time after seeing a lightning flash.

Lightning heats the surrounding air to about 30,000 degrees Centigrades.

Report Error

View Answer Workspace Report Error Discuss

Filed Under: Physics
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Analyst , Bank Clerk , Bank PO

0 24
Q:

Which is an example of Phototropism?

A) roots of a plant following water B) plant bending toward the light
C) roots growing into the soil D) a venus flytrap capturing a fly
 
Answer & Explanation Answer: B) plant bending toward the light

Explanation:

Phototropism is the ability of a photosynthesizing organism, to grow directionally in response to a light source. It is very common in plants, but can also occur in other organisms such as fungi.

Example :: Sunflower

Report Error

View Answer Workspace Report Error Discuss

Filed Under: Physics
Exam Prep: AIEEE , Bank Exams
Job Role: Analyst , Bank Clerk , Bank PO

0 4
Q:

Which liquid is the most viscous?

A) Water B) Diesel
C) Milk D) Oil
 
Answer & Explanation Answer: D) Oil

Explanation:

Here Oil is the most viscous liquid.

The liquid with the most intermolecular force is high viscous. viscosity is how smoothly a liquid flows and how hardly the liquid flows it is highly viscous.

Report Error

View Answer Workspace Report Error Discuss

Filed Under: Physics
Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Analyst , Bank Clerk , Bank PO , IT Trainer

1 16
Q:

Nuclear Fission is caused by the impact of

A) Electron B) Neutron
C) Proton D) Deutron
 
Answer & Explanation Answer: B) Neutron

Explanation:

In nuclear physics, nuclear fission is either a nuclear reaction or a radioactive decay process in which the nucleus of an atom splits into smaller parts (lighter nuclei). The fission process often produces free neutrons and releases a very large amount of energy.

 

Thus, The Nuclear Fission is caused by the impact of Neutrons.

Report Error

View Answer Workspace Report Error Discuss

1 8
Q:

Which of the following uses a Non Renewable Energy Source?

A) Wind Mill Power Plant B) Hydro Electric Plant
C) Nuclear Power Plant D) Tidal Power Plant
 
Answer & Explanation Answer: C) Nuclear Power Plant

Explanation:

Nuclear Power Plant uses a Non Renewable Energy Source.

 

Non-renewable energy is that source of energy which can not be used again and again. This sort of energy is sustainable to exhaustion.


Non renewable energy is that form of energy which is subject to deletion. This type of energy is of many uses to us. It can be used to produce electricity, heating, cooking, transportation and manufacturing. 85% of the energy used in the industrial processes is form the non-renewable type of energy.

Report Error

View Answer Workspace Report Error Discuss

Filed Under: Physics
Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Analyst , Bank Clerk , Bank PO

2 13
Q:

Which Color has the Longest Wavelength?

A) Violet B) Yellow
C) Red D) White
 
Answer & Explanation Answer: C) Red

Explanation:

The visible colors from Longest wavelength to Shortest wavelength are :: Red, Orange, Yellow, Green, Blue and Violet.

                    Red > Orange > Yellow > Green > Blue > Violet.

 

1. Infrared radiation has a longer wavelength than visible Red light.

 

2. Ultraviolet radiation has a shorter wavelength than the visible violet light. 

 

3. The white light is a mixture of the colors of the visible spectrum.

Report Error

View Answer Workspace Report Error Discuss

Filed Under: Physics
Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Analyst , Bank Clerk , Bank PO , IT Trainer

3 100
Q:

Which of the following is Not a form of Energy?

A) Heat B) Sound
C) Motion D) Pressure
 
Answer & Explanation Answer: D) Pressure

Explanation:

Pressure is Not a form of Energy.

 

Energy : It is defined as the ability to do work.

Energy comes in two basic forms. They are :

1. Potential Energy

2. Kinetic Energy

 

Potential Energy is any type of stored energy. It can be chemical, nuclear, gravitational, or mechanical.

Kinetic Energy is found in movement. An airplane flying or a meteor plummeting each have kinetic energy. Even the tiniest things have kinetic energy, like atoms vibrating when they are hot or when they transmit sound waves. Electricity is the kinetic energy of flowing electrons between atoms.

Report Error

View Answer Workspace Report Error Discuss

Filed Under: Physics
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Analyst , Bank Clerk , Bank PO , IT Trainer

3 85
Q:

How long would it take to travel 4 light years?

Answer

There are approximately 6 trillion miles in a light-year, so the distance we need to go is 6 trillion miles / light-year times. 4 light-years is equal to 24 trillion miles. So, this whole would take 1.2 billion hours. There are 24 hours a day and 365.25 days per year, so this time in years is 137 thousand years.

Report Error

View answer Workspace Report Error Discuss

Subject: Physics Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Analyst , Bank Clerk , Bank PO , IT Trainer

5 81