Tiwari Academy Discussion

Poll

Karan Gujral

Asked: December 6, 2021In: Class 10 Science

Speed of light in vacuum is 3 x 10⁸ m/s. Then speed of light in glass (refractive index 1.5) will be:

Class X Science MCQ Extra Questions Answers 10th Science Terminal Exam Based MCQ Extra Questions Class 10 Science Terminal Exams MCQ Solutions Class 10th Science Session 2022-23

Poll

Kartik Ahuja

Asked: December 6, 2021In: Class 10 Science

Most of the refraction for the light rays entering the eye occurs at:

Our eyes have functioned very crucial work. It has simple organs to focus the objects. Lens (crystalline) which provides the length adjustment (focal length for focus the object and remaining the blur) which is required to focus the objects at ...

Poll

Madan Mohan

Asked: December 6, 2021In: Class 10 Science

Lymph does not comprise of:

Class 10 Science Terminal Exams MCQ Solutions Class X Science MCQ Extra Questions Answers 10th Science Terminal Exam Based MCQ Extra Questions Class 10th Science Session 2022-23

Poll

Madan Mohan

Asked: December 6, 2021In: Class 10 Science

Which of the following is the first site for the exchange of inhaled air?

Class 10th Science Session 2022-23 Class 10 Science Terminal Exams MCQ Solutions Class X Science MCQ Extra Questions Answers 10th Science Terminal Exam Based MCQ Extra Questions

Poll

Madan Mohan

Asked: December 6, 2021In: Class 10 Science

A blue litmus paper was first dipped in dil. HCl and then in dil. NaOH solution. The colour of the litmus paper will be

You must know that – in acid blue Litmus changes to Red. Generally, litmus are indicators. And in basic solution red litmus changes to Blue.

Poll

Gabbru

Asked: December 6, 2021In: Class 10 Science

During the preparation of hydrogen chloride gas on a humid day, the gas is usually passed through the guard tube containing calcium chloride. The role of calcium chloride taken in the guard tube is to

We must know that – During the preparation of hydrogen chloride gas on a humid day, the role of calcium chloride (CaCl₂) taken in the guard tube is to absorb moisture from gas. This is because CaCl₂ is used gas ...

Poll

RK Gupta

Asked: December 6, 2021In: Class 10 Science

The iron rod is covered with reddish brown layer which damages the surface of rod. Which of the following Method can be used to prevent its damage?

The layer of Zinc metal can prevent corrosion easily. Remember that, the iron rod can be protected from corrosion by coating a thin layer of zinc metal. The process of coating zinc cover over iron is called galvanization. It is ...

Poll

Ram malik

Asked: December 6, 2021In: Class 10 Science

A dil. ferrous sulphate (FeSO₄) solution was added to the beaker containing acidified permanganate solution. The light purple colour of the solution fades and finally disappears. Which of the following is the correct explanation for the observation?

You must know that – when, a dil. FeSO₄ solution was slowly added to the beaker which containing acidified solution of permanganate. The light purple colour of the solution of KMnO₄ fades and at last it, disappears. The reason behind ...

Poll

Kartik Ahuja

Asked: December 6, 2021In: Class 10 Science

The near point and far point of a young adult with normal vision is:

Class 10 Science Terminal Exams MCQ Solutions Class X Science MCQ Extra Questions Answers 10th Science Terminal Exam Based MCQ Extra Questions Class 10th Science Session 2022-23

Poll

Lalit jain

Asked: December 6, 2021In: Class 10 Science

The image formed by eye lens is:

Class 10 Science Terminal Exams MCQ Solutions Class X Science MCQ Extra Questions Answers 10th Science Terminal Exam Based MCQ Extra Questions Class 10th Science Session 2022-23

Speed of light in vacuum is 3 x 10⁸ m/s. Then speed of light in glass (refractive index 1.5) will be:

Most of the refraction for the light rays entering the eye occurs at:

Lymph does not comprise of:

Which of the following is the first site for the exchange of inhaled air?

A blue litmus paper was first dipped in dil. HCl and then in dil. NaOH solution. The colour of the litmus paper will be

During the preparation of hydrogen chloride gas on a humid day, the gas is usually passed through the guard tube containing calcium chloride. The role of calcium chloride taken in the guard tube is to

The iron rod is covered with reddish brown layer which damages the surface of rod. Which of the following Method can be used to prevent its damage?

A dil. ferrous sulphate (FeSO₄) solution was added to the beaker containing acidified permanganate solution. The light purple colour of the solution fades and finally disappears. Which of the following is the correct explanation for the observation?

The near point and far point of a young adult with normal vision is:

The image formed by eye lens is:

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