Home
Class 12
BIOLOGY
Nebula is a cloud of gas that...

Nebula is a cloud of gas that

A

Glows brightly

B

Reflected light

C

Is dark

D

All the above.

Text Solution

AI Generated Solution

The correct Answer is:
To answer the question "Nebula is a cloud of gas that," we need to analyze the characteristics of a nebula. ### Step-by-Step Solution: 1. **Definition of Nebula**: A nebula is defined as a large cloud of gas and dust in space. It can be composed of various elements, primarily hydrogen and helium. 2. **Characteristics of Nebula**: - **Glow Brightly**: Some nebulae are known to glow brightly due to the ionization of the gas within them, often caused by nearby stars. This is especially true for emission nebulae. - **Reflected Light**: Other types of nebulae, such as reflection nebulae, do not emit their own light but reflect the light of nearby stars, making them visible. - **Dark Nebula**: There are also dark nebulae, which are dense clouds of gas and dust that block the light from objects behind them, appearing dark against the background of space. 3. **Options Analysis**: - **Option 1**: "Glow brightly" - This is true for some types of nebulae. - **Option 2**: "Reflected light" - This is also true for certain nebulae that reflect light from nearby stars. - **Option 3**: "Dark" - This is true for dark nebulae that do not emit or reflect light. - **Option 4**: "All the above" - Since all the previous statements about nebulae are correct, this option is also true. 4. **Conclusion**: Since all the options provided are characteristics of different types of nebulae, the correct answer is **Option 4: All the above**. ### Final Answer: **Option 4: All the above**
Promotional Banner

Topper's Solved these Questions

  • HUMAN EVOLUTION

    DINESH PUBLICATION ENGLISH|Exercise Check Your Grasp|10 Videos

  • GROWTH, REPAIR, REGENERATION AND AGEING

    DINESH PUBLICATION ENGLISH|Exercise Brain Teasers-VI[B]|6 Videos

  • HUMAN HEALTH AND DISEASE

    DINESH PUBLICATION ENGLISH|Exercise CHECK YOUR GRASP|17 Videos

Similar Questions

Explore conceptually related problems

How is a cloud formed ?

If the angle of elevation of a cloud from a point P which is 25 m above a lake be 30^(@) and the angle of depression of reflection of the cloud in the lake from P be 60^(@) , then the height of the cloud (in meters) from the surface of the lake is

The angle of elevation of a cloud from a point h metre above a lake is theta .The angle depression of its reflection in the lake is 45^@ The height of the cloud is

The angle of elevation of a cloud from a point h mt. above is theta^@ and the angle of depression of its reflection in the lake is phi . Then, the height is

The gas law which relates the volume of a gas to moles of the gas is:

Identify the gas in the case: A gas that causes acid rain.

A cloud is at a potential of 8 xx 10^(6) volt relative to the ground. A charge of 80 coulomd is transferred in lightening stroke betwee the cloud and the gorund. Assuming the potential of the cloud of remain constant, the energy dissipated is

If the angle of elevation of a cloud from a point h metres above a lake is alpha and the angle of depression of its reflection in the lake is beta , prove that the height of the cloud is (h(tanbeta+t a nalpha))/(tanbeta-t a nalpha)

Concentrated hydrochloric acid when kept in open air sometimes produces a cloud of white fumes. The explanation for it is that :

The charge cloud of a single electron in a 2p atomic orbital has two lobes of electron density .This metans