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Class 9 (1637 questions)
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by GIANSH GUPTA KHUNDKER
· Class 9
A particle moves along a straight line so that its displacement s (in metres) at time t (in seconds) is s = t³ - 6t² + 9t + 4. What is the velocity of the particle when its acceleration becomes zero?
Science
Motion
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by GIANSH GUPTA KHUNDKER
· Class 9
An astronaut on a newly discovered planet drops a small 2 kg sphere from a height of 20 m. It takes exactly 4 seconds to hit the ground. The planet is perfectly spherical with a radius equal to half of the Earth's radius. Assuming no air resistance, what is the ratio of the mass of the planet to the mass of the Earth? (Take g on Earth = 10 m/s²)
Science
Other
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by GIANSH GUPTA KHUNDKER
· Class 9
A security drone starts at Point X and flies 12 km North to Point Y. From Point Y, it turns clockwise by an angle equal to the angle between the hour hand and minute hand of a standard analog clock at exactly 03:40 PM, and flies for 10 km to reach Point Z. What is the precise degree of clockwise rotation the drone made at Point Y?
Reasoning
Direction Sense Test
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by GIANSH GUPTA KHUNDKER
· Class 9
Statements:
1. All firewalls are encryptions.
2. Some encryptions are protocols.
3. No protocol is a malware.
Conclusions:
I. Some firewalls are protocols.
II. No malware is an encryption.
III. Some encryptions are definitely not malwares.
Reasoning
Logical
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by GIANSH GUPTA KHUNDKER
· Class 9
What is the environmental hazard associated with the improper disposal of electronic waste (e-waste) like old smartphones and monitors?
Green Warrior
Other
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by GIANSH GUPTA KHUNDKER
· Class 9
Which configuration setting should a "Green Warrior" enable on a computer operating system to drastically reduce its idle power consumption?
Green Warrior
Other
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by GIANSH GUPTA KHUNDKER
· Class 9
What is the primary objective of "Green Computing" in the field of information technology?
Green Warrior
Other
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by GIANSH GUPTA KHUNDKER
· Class 9
If your device temporarily loses internet connectivity while you are editing a cloud-synced Word document via desktop applications, what happens to your changes?
Cyber
MS Office Integration
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by GIANSH GUPTA KHUNDKER
· Class 9
How does using the @mention feature within a comment inside a modern shared Word or Excel document enhance team collaboration?
Cyber
MS Office Integration
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by GIANSH GUPTA KHUNDKER
· Class 9
What is the primary purpose of the Match Fields dialog box during a Mail Merge setup in MS Word?
Cyber
MS Office Integration
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by GIANSH GUPTA KHUNDKER
· Class 9
You want to insert a specific promotional code in a Mail Merge letter only if the recipient's city field matches "New York". Which Mail Merge feature should you insert into your document template?
Cyber
MS Office Integration
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by GIANSH GUPTA KHUNDKER
· Class 9
Apart from Microsoft Excel spreadsheets, which of the following file or database formats can be natively utilized as a valid data source for a Mail Merge operation in Microsoft Word?
Cyber
MS Office Integration
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by GIANSH GUPTA KHUNDKER
· Class 9
In MS Word, when dealing with linked data fields from Excel, how can a user ensure that data updates do not happen automatically upon opening the document, but rather require a manual refresh command?
Cyber
MS Office Integration
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by GIANSH GUPTA KHUNDKER
· Class 9
Which feature in Microsoft Office allows you to insert data from another application and explicitly choose whether to paste it as a normal graphic, formatted text, or a dynamic link?
Cyber
MS Office Integration
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by GIANSH GUPTA KHUNDKER
· Class 9
Two bodies with masses M1 and M2 are separated by a distance R, and the gravitational force between them is F. If the mass of the first body is doubled, the mass of the second is halved, and the distance between their centres is reduced to R/2, what will be the new gravitational force?
Science
Atoms and Molecules
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by GIANSH GUPTA KHUNDKER
· Class 9
A sonar device on a submarine sends an ultrasound signal into the ocean. The signal reflects off an underwater reef and is detected by the submarine's receiver exactly 2.4 seconds later. If the speed of sound in seawater is 1500 m/s, how far away is the reef from the submarine?
Science
Gravitation
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by GIANSH GUPTA KHUNDKER
· Class 9
In quadrilateral ABCD, the bisectors of ∠A and ∠B meet at a point P inside the quadrilateral. If ∠C = 110° and ∠D = 70°, what is the measure of ∠APB?
Maths
Quadrilaterals
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by GIANSH GUPTA KHUNDKER
· Class 9
A right circular cylinder has a radius of r units and a height equal to its diameter. A sphere fits tightly inside the cylinder, touching the top, bottom and curved surface. What is the ratio of the volume of the cylinder to the volume of the sphere?
Maths
Quadrilaterals
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by GIANSH GUPTA KHUNDKER
· Class 9
An element has an atomic number of 13 and a mass number of 27. How many neutrons are present in the nucleus of this atom?
Science
Structure of Atom
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by GIANSH GUPTA KHUNDKER
· Class 9
An object of mass 2 kg is sliding with a constant velocity of 4 m/s on a frictionless horizontal table. What is the net force required to keep the object moving with the same velocity?
Science
Force and Laws of Motion
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