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Ritu replied | 1 day ago

Key features include automated birth chart (Kundli) calculation, personalized daily horoscopes, and relationship compatibility matching. The platform also requires real-time chat/call consultations with verified astrologers, secure payment gateways, and daily transit push notifications..

Balmukund replied | 2 days ago

Servlet = low-level Java mechanism that handles raw HTTP requests/responses (doGet, doPost, etc.) — general purpose, can output anything (HTML, JSON, etc.), can maintain session state.

RESTful web service = an architectural style for designing resource-based APIs — uses HTTP verbs (GET/POST/PUT/DELETE) mapped to CRUD, typically returns JSON, and should be stateless.

Nutshell :
Servlet = how requests are received;
REST = how your API should be designed/structured.

Balmukund replied | 2 days ago

Quickest path:
Node docs → build a raw HTTP server (no framework) → Express + MongoDB CRUD project → add auth → deploy. 2–4 weeks if practiced daily.

Balmukund replied | 2 days ago

Common uses of eddy current are : 

• Induction furnaces/cooktops — heating metals via induced currents
• Electromagnetic braking — trains, roller coasters (contactless braking)
• Energy meters — rotating disc speed ∝ power consumption
• Analog speedometers — older cars, magnet + disc mechanism

Balmukund replied | 2 days ago

Time constraint:
Time = Distance/Speed. Time taken at 50 km/hr is $\dfrac{x}{50}$ , and time taken at 80 km/hr is $\dfrac{y}{80}$. Total time available is at most 1 hour:

$$\frac{x}{50} + \frac{y}{80} \leq 1$$

Multiplying through by 400 (LCM of 50 and 80) to clear denominators:

$$8x + 5y \leq 400$$

Petrol cost is Rs 2 per km at 50 km/hr, and Rs 3 per km at 80 km/hr. Total cost is at most Rs 120:

$$2x + 3y \leq 120$$

8x+5y≤400 ---------- (i)$$2x + 3y \leq 120$$2x+3y≤120----------- (ii)