All questions

• One mole of an ideal gas expands isothermally at 300 K to twice its initial volume. The work done by the gas is approximately (R = 8.314 J mol-1 K-1, ln 2 = 0.693) Answer: B. 1729 J W=nRTlnV₂/V₁=8.314×300×0.693≈1729 J. Thermodynamics 1 answer
• A Carnot engine has efficiency 40% with its sink at 300 K. Keeping the sink temperature constant, by how much should the source temperature be increased to raise the efficiency to 50%? Answer: C. 100 K 0.4=1-300/T₁⇒ T₁=500 K. For 50%: T₁'=600 K. Increase =100 K. Thermodynamics 1 answer
• The displacement of a particle in SHM is \(x=5\sin\left(\pi t+\frac{\pi}{3}\right)\) cm. Its maximum speed is Answer: B. 5π cm/s v_max=Aω=5×π=5π cm/s. Oscillations 1 answer
• A mass attached to a spring oscillates with period \(T\). The spring is cut into two equal halves and the same mass is attached to one half. The new period is Answer: D. T/sqrt2 Half spring has k'=2k . T∝1/sqrt k⇒ T'=T/sqrt2 . Oscillations 1 answer
• The fundamental frequency of a pipe closed at one end is 250 Hz. The frequency of its first overtone is Answer: D. 750 Hz A closed pipe has only odd harmonics; first overtone =3n=750 Hz. Superposition of Waves 1 answer
• A tuning fork of frequency 256 Hz produces 4 beats/s with an unknown fork. When the unknown fork is loaded with a little wax (which lowers its frequency), the number of beats becomes 6 per second. The original frequency of the unknown fork is Answer: A. 252 Hz Unknown is 252 or 260 Hz. Loading lowers frequency; beats increase only if it was already below 256, so it is 252 Hz. Superposition of Waves 1 answer
• A string 1 m long, fixed at both ends, carries transverse waves with speed 200 m/s. The frequency of its second overtone is Answer: A. 300 Hz Fundamental =v/2L=100 Hz; second overtone = third harmonic =300 Hz. Superposition of Waves 1 answer
• What will bethesame of magnesium chloride? Chapter 5 Acids, Bases and Salts no answer
• Aids Sem 8 previous year question papers no answer
• What is the difference between a Letter of Intent (LOI) and an Offer Letter The difference between a Letter of Intent (LOI) and an Offer Letter is significant, as they represent different stages in the hiring or job... 1 answer
• Management information system AIDS sem 7 study material MODULE 1 – Introduction to Information Systems (IS) Q1) List the various components of CBIS. Q2) Highlight the Economic impacts of IS. Give... 1 answer
• Management information system (AIDS) SEM 7 Important questions MODULE 1 – Introduction to Information Systems (IS) Q1) List the various components of CBIS. Q2) Highlight the Economic impacts of IS. Give... 1 answer
• What Should We Expect During the SIH 2024 Finals Event? Competitive Atmosphere: The SIH 2024 finals will be a highly competitive and fast-paced environment. You’ll be surrounded by talented teams,... 1 answer
• Can We Expect Any Funding for Our Travel and Accommodation for SIH 2024 Finals? Funding from Government: The government covers travel expenses for sleeper class, but this typically does not include higher-class travel li... 1 answer
• How Does the Mentoring Process Work During SIH 2024 Finals? Three Mentoring Rounds: During the SIH 2024 finals, your team will have the opportunity to interact with mentors in three rounds. These sess... 1 answer
• How Many Teams Will Qualify from Each Problem Statement for SIH 2024 Finals? Team Selection per Problem Statement: Typically, 5 to 7 teams will qualify from each problem statement to attend the SIH 2024 finals. The nu... 1 answer
• What Should We Keep in Mind for SIH 2024 Finals? Focus on Your Project: Ensure your project is finalized and thoroughly tested. The SIH 2024 finals will assess both the innovation and funct... 2 answers
• Is Qualifying for SIH 2024 Finals a Big Deal? How Will It Benefit My Resume and LinkedIn Profile? A Significant Achievement: Yes, making it to the SIH 2024 finals is a huge accomplishment. You have already outperformed hundreds of other t... 1 answer
• How Are Nodal Centers Assigned for SIH 2024 Finals? Random Assignment of Nodal Centers: Nodal centers are usually assigned randomly for SIH 2024 finals. It does not depend on where your team i... 1 answer
• Will the Government Pay for Travel to the SIH 2024 Finals? Can We Travel by Flight? Travel Funding for SIH 2024 Finals: The government typically covers travel expenses for sleeper class train tickets to the SIH 2024 finals,... 1 answer
• Our Team is Selected for SIH 2024 Finals , What Should We Do Next? Celebrate the Achievement: Congratulations on being selected! Your team has already made it to a prestigious stage. Finalize Your Project: B... 1 answer
• BDA AI&DS all previous year question papers? (For every subject if possible) no answer
• Related to comp sem 5 important questions We have added IMP questions for semester 5 on our website from pvt academy Computer Network Data Warehousing and Mining Internet Programming... 1 answer
• Please share hadoop eco system diagram 1. HDFS (Hadoop Distributed File System) HDFS is a distributed file system that can be installed on commodity servers, making it cost-effect... 1 answer