CBSE Class 10 - Physics - The Human Eye and the Colourful World – Unit Test Paper (#eduvictors)(#cbsepapers)

The Human Eye and the Colourful World – Unit Test Paper

Q1: A person cannot see distinctly objects kept beyond 2 m. This defect can be corrected by using a lens of power which type?

Q2: Give reasons for the following:
i. Stars twinkle at night.
ii. The sun appears reddish early in morning.
iii. Planets do not twinkle.
iv. Red colour is used in danger signals.

Q3: A person walking in desert gets a illusion of seeing water. Name the phenomenon of light responsible for it.

Q4: Distinguish between Refraction and Dispersion.

CBSE CLASS 10 - Physics - Refraction From Lens - Worksheet (#cbseNotes)(#eduvictors)

Physics - Refraction From Lens

Q1: In refraction of light, what does Snell's Law state?

Answer: The ratio of sine of angle of incidence to the sine of angle of refraction remains constant subject to certain conditions. This is called refraction.


Q2: Which of the following property of light wave changes when it travels from one medium to another (having different optical densities)?

a. Wavelength
b. Speed of Light
c. Frequency

CBSE Class 8 - Science Chapter - Light (Unit Test) (#cbseNotes)(#eduvictors)

Light (Unit Test Paper)

Time: 1½ Hrs

Q1: If the angle between the mirror and the incident ray is 30°, what is value of the angle of reflection?

Q2(MCQ): Two plane mirrors are kept at the following angles one by one. In which case is the number of images formed the maximum?
a. 30° b. 60° c. 45° d. 90°

Note: (Q3 – Q8) Give One Word Answer

Q3: Is the reflection of light by the smooth walls of your house regular or irregular?

Q4: A plane mirror always forms the image of an object exactly on the reflecting surface. True or false?

Q5: Is the image formed by a plane mirror exactly of the same size as the object?

CBSE Class 10 - Sanskrit - Sample Question Paper - (2017-18) (#eduvictors)(#cbsepapers)

CBSE Class 10 - Sanskrit -
Sample Question Paper - (2017-18)

CBSE Class 12 - Multimedia and Web Technology - Sample Question Paper - (2017-18) (#eduvictors)(#cbsepapers)

CBSE Class 12 - Multimedia and Web Technology -
Sample Question Paper - (2017-18)

CBSE Class 12 - Computer Science - Sample Question Paper - (2017-18) (#eduvictors)(#cbsepapers)

CBSE Class 12 - Computer Science -
Sample Question Paper - (2017-18)

Current Affairs - Know Your Cabinet Ministers, President and other Famous Persons(#general knowledge)(#eduvictors)

Current Affairs - Who is Who

Q1: Who is External Affairs minister?

Q2: Name the Defence minister.

Q3: Who was the first president of India?

Q4: Who was popularly called Iron Man of India?

Q5: Who is the Chief Minister of Odhisha?

Q6: Name the capital of Maharashtra?

CBSE Class 10 - English (Comm) - Sample Question Paper - (2017-18) (#eduvictors)(#cbsenotes)

CBSE Class 10 - English (Comm) -
Sample Question Paper - (2017-18)

Class 7/8/9/10 - Science - Clean Air: From Donora to Delhi - Can we breathe safely? (#eduvictors)(#cbse-notes)

Clean Air: From Donora to Delhi -
Can we breathe safely?

With the industrial revolution, the human mankind experienced the air pollution for the first time and realized it as a potential threat to human life. The black smoke of locomotives, factories from the industrial towns of England blackened its cities.

In 1950s, the smoke of industrialized Pennsylvania valley in USA made the air murkier. In the small town of Donora, population 14,000, residents suffered eye, nose, and throat irritation and breathing difficulties resulting in 20 deaths.

In 2008, on the 60th anniversary of the event, the town opened the Donora Smog Museum with the
slogan "Clean Air Starts Here".

CBSE Class 12 - Informatics Practices - Chapter - IT Applications (Q & A) (#cbseNotes) (#eduvictors)

IT Applications (Q & A)

Class 12 - Informatics Practices

Q1: What is the use of 'Front end'?

Answer: The front end application interacts with the user and collects input from the user. For example: E-mail sign up form or any application where a user enters data.


Q2: What is the use of 'Back end' application?

Answer: The backend is an application or program that is not visible to the user but that processes the user requests as received from the front end. The back end handles all database accesses through one or more servers. For Example: MYSQL, Oracle, MS-Access etc.